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Finding the Fourth Proportional to 268,314.95, 402,472.43 and 143,898.95

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Solution

The fourth proportional to 268,314.95, 402,472.43 and 143,898.95 is: 215,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,314.95 : 402,472.43 = 143,898.95 : x
  2. Step 2: Convert to fraction form
    268,314.95/402,472.43 = 143,898.95/x
  3. Step 3: Cross multiply
    268,314.95x = 402,472.43 × 143,898.95
  4. Step 4: Simplify right side
    268,314.95x = 57,915,359,361.45
  5. Step 5: Solve for x
    x = 57,915,359,361.45/268,314.95
  6. Step 6: Final answer
    x = 215,848.43

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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.