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Finding the Fourth Proportional to 243,248.68, 335,683.38 and 135,818.56

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Solution

The fourth proportional to 243,248.68, 335,683.38 and 135,818.56 is: 187,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,248.68 : 335,683.38 = 135,818.56 : x
  2. Step 2: Convert to fraction form
    243,248.68/335,683.38 = 135,818.56/x
  3. Step 3: Cross multiply
    243,248.68x = 335,683.38 × 135,818.56
  4. Step 4: Simplify right side
    243,248.68x = 45,592,033,287.53
  5. Step 5: Solve for x
    x = 45,592,033,287.53/243,248.68
  6. Step 6: Final answer
    x = 187,429.73

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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.