Home / 292,292.70-438,439.05-81,966.30

Finding the Fourth Proportional to 292,292.70, 438,439.05 and 81,966.30

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Solution

The fourth proportional to 292,292.70, 438,439.05 and 81,966.30 is: 122,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,292.70 : 438,439.05 = 81,966.30 : x
  2. Step 2: Convert to fraction form
    292,292.70/438,439.05 = 81,966.30/x
  3. Step 3: Cross multiply
    292,292.70x = 438,439.05 × 81,966.30
  4. Step 4: Simplify right side
    292,292.70x = 35,937,226,704.02
  5. Step 5: Solve for x
    x = 35,937,226,704.02/292,292.70
  6. Step 6: Final answer
    x = 122,949.45

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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.