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Finding the Fourth Proportional to 538,917.40, 808,376.10 and 223,269.40

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Solution

The fourth proportional to 538,917.40, 808,376.10 and 223,269.40 is: 334,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,917.40 : 808,376.10 = 223,269.40 : x
  2. Step 2: Convert to fraction form
    538,917.40/808,376.10 = 223,269.40/x
  3. Step 3: Cross multiply
    538,917.40x = 808,376.10 × 223,269.40
  4. Step 4: Simplify right side
    538,917.40x = 180,485,646,821.34
  5. Step 5: Solve for x
    x = 180,485,646,821.34/538,917.40
  6. Step 6: Final answer
    x = 334,904.10

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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.