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Finding the Fourth Proportional to 268,403.34, 370,404.90 and 147,553.86

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Solution

The fourth proportional to 268,403.34, 370,404.90 and 147,553.86 is: 203,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,403.34 : 370,404.90 = 147,553.86 : x
  2. Step 2: Convert to fraction form
    268,403.34/370,404.90 = 147,553.86/x
  3. Step 3: Cross multiply
    268,403.34x = 370,404.90 × 147,553.86
  4. Step 4: Simplify right side
    268,403.34x = 54,654,672,757.91
  5. Step 5: Solve for x
    x = 54,654,672,757.91/268,403.34
  6. Step 6: Final answer
    x = 203,628.88

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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.