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Finding the Fourth Proportional to 243,002.68, 335,343.90 and 135,572.73

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Solution

The fourth proportional to 243,002.68, 335,343.90 and 135,572.73 is: 187,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,002.68 : 335,343.90 = 135,572.73 : x
  2. Step 2: Convert to fraction form
    243,002.68/335,343.90 = 135,572.73/x
  3. Step 3: Cross multiply
    243,002.68x = 335,343.90 × 135,572.73
  4. Step 4: Simplify right side
    243,002.68x = 45,463,487,262.71
  5. Step 5: Solve for x
    x = 45,463,487,262.71/243,002.68
  6. Step 6: Final answer
    x = 187,090.48

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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.