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Finding the Fourth Proportional to 557,761.20, 836,641.80 and 137,031.60

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Solution

The fourth proportional to 557,761.20, 836,641.80 and 137,031.60 is: 205,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,761.20 : 836,641.80 = 137,031.60 : x
  2. Step 2: Convert to fraction form
    557,761.20/836,641.80 = 137,031.60/x
  3. Step 3: Cross multiply
    557,761.20x = 836,641.80 × 137,031.60
  4. Step 4: Simplify right side
    557,761.20x = 114,646,364,480.88
  5. Step 5: Solve for x
    x = 114,646,364,480.88/557,761.20
  6. Step 6: Final answer
    x = 205,547.40

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Similar ratio
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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.