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Finding the Fourth Proportional to 292,039.43, 438,104.70 and 92,340.81

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Solution

The fourth proportional to 292,039.43, 438,104.70 and 92,340.81 is: 138,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,039.43 : 438,104.70 = 92,340.81 : x
  2. Step 2: Convert to fraction form
    292,039.43/438,104.70 = 92,340.81/x
  3. Step 3: Cross multiply
    292,039.43x = 438,104.70 × 92,340.81
  4. Step 4: Simplify right side
    292,039.43x = 40,454,942,862.81
  5. Step 5: Solve for x
    x = 40,454,942,862.81/292,039.43
  6. Step 6: Final answer
    x = 138,525.62

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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.