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Finding the Fourth Proportional to 581,712.30, 872,568.45 and 155,247.30

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Solution

The fourth proportional to 581,712.30, 872,568.45 and 155,247.30 is: 232,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,712.30 : 872,568.45 = 155,247.30 : x
  2. Step 2: Convert to fraction form
    581,712.30/872,568.45 = 155,247.30/x
  3. Step 3: Cross multiply
    581,712.30x = 872,568.45 × 155,247.30
  4. Step 4: Simplify right side
    581,712.30x = 135,463,895,927.69
  5. Step 5: Solve for x
    x = 135,463,895,927.69/581,712.30
  6. Step 6: Final answer
    x = 232,870.95

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Double scale
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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.