Home / 487,935.90-731,903.85-155,511.90

Finding the Fourth Proportional to 487,935.90, 731,903.85 and 155,511.90

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Solution

The fourth proportional to 487,935.90, 731,903.85 and 155,511.90 is: 233,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,935.90 : 731,903.85 = 155,511.90 : x
  2. Step 2: Convert to fraction form
    487,935.90/731,903.85 = 155,511.90/x
  3. Step 3: Cross multiply
    487,935.90x = 731,903.85 × 155,511.90
  4. Step 4: Simplify right side
    487,935.90x = 113,819,758,330.82
  5. Step 5: Solve for x
    x = 113,819,758,330.82/487,935.90
  6. Step 6: Final answer
    x = 233,267.85

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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.