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Finding the Fourth Proportional to 538,810.08, 808,215.08 and 239,220.24

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Solution

The fourth proportional to 538,810.08, 808,215.08 and 239,220.24 is: 358,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,810.08 : 808,215.08 = 239,220.24 : x
  2. Step 2: Convert to fraction form
    538,810.08/808,215.08 = 239,220.24/x
  3. Step 3: Cross multiply
    538,810.08x = 808,215.08 × 239,220.24
  4. Step 4: Simplify right side
    538,810.08x = 193,341,405,409.22
  5. Step 5: Solve for x
    x = 193,341,405,409.22/538,810.08
  6. Step 6: Final answer
    x = 358,830.34

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.