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Finding the Fourth Proportional to 243,436.55, 335,936.24 and 136,007.39

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Solution

The fourth proportional to 243,436.55, 335,936.24 and 136,007.39 is: 187,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,436.55 : 335,936.24 = 136,007.39 : x
  2. Step 2: Convert to fraction form
    243,436.55/335,936.24 = 136,007.39/x
  3. Step 3: Cross multiply
    243,436.55x = 335,936.24 × 136,007.39
  4. Step 4: Simplify right side
    243,436.55x = 45,689,808,849.10
  5. Step 5: Solve for x
    x = 45,689,808,849.10/243,436.55
  6. Step 6: Final answer
    x = 187,686.73

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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.