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Finding the Fourth Proportional to 252,864.59, 348,952.86 and 145,431.86

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Solution

The fourth proportional to 252,864.59, 348,952.86 and 145,431.86 is: 200,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,864.59 : 348,952.86 = 145,431.86 : x
  2. Step 2: Convert to fraction form
    252,864.59/348,952.86 = 145,431.86/x
  3. Step 3: Cross multiply
    252,864.59x = 348,952.86 × 145,431.86
  4. Step 4: Simplify right side
    252,864.59x = 50,748,861,737.36
  5. Step 5: Solve for x
    x = 50,748,861,737.36/252,864.59
  6. Step 6: Final answer
    x = 200,695.81

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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.