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Finding the Fourth Proportional to 292,139.56, 438,334.44 and 92,476.20

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Solution

The fourth proportional to 292,139.56, 438,334.44 and 92,476.20 is: 138,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,139.56 : 438,334.44 = 92,476.20 : x
  2. Step 2: Convert to fraction form
    292,139.56/438,334.44 = 92,476.20/x
  3. Step 3: Cross multiply
    292,139.56x = 438,334.44 × 92,476.20
  4. Step 4: Simplify right side
    292,139.56x = 40,535,503,340.33
  5. Step 5: Solve for x
    x = 40,535,503,340.33/292,139.56
  6. Step 6: Final answer
    x = 138,753.90

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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.