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Finding the Fourth Proportional to 268,424.75, 370,411.92 and 147,542.78

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Solution

The fourth proportional to 268,424.75, 370,411.92 and 147,542.78 is: 203,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,424.75 : 370,411.92 = 147,542.78 : x
  2. Step 2: Convert to fraction form
    268,424.75/370,411.92 = 147,542.78/x
  3. Step 3: Cross multiply
    268,424.75x = 370,411.92 × 147,542.78
  4. Step 4: Simplify right side
    268,424.75x = 54,651,605,347.97
  5. Step 5: Solve for x
    x = 54,651,605,347.97/268,424.75
  6. Step 6: Final answer
    x = 203,601.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.