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Finding the Fourth Proportional to 538,804.31, 808,206.48 and 239,214.47

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Solution

The fourth proportional to 538,804.31, 808,206.48 and 239,214.47 is: 358,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,804.31 : 808,206.48 = 239,214.47 : x
  2. Step 2: Convert to fraction form
    538,804.31/808,206.48 = 239,214.47/x
  3. Step 3: Cross multiply
    538,804.31x = 808,206.48 × 239,214.47
  4. Step 4: Simplify right side
    538,804.31x = 193,334,684,763.77
  5. Step 5: Solve for x
    x = 193,334,684,763.77/538,804.31
  6. Step 6: Final answer
    x = 358,821.71

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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.