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Finding the Fourth Proportional to 243,395.28, 335,863.26 and 135,950.40

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Solution

The fourth proportional to 243,395.28, 335,863.26 and 135,950.40 is: 187,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,395.28 : 335,863.26 = 135,950.40 : x
  2. Step 2: Convert to fraction form
    243,395.28/335,863.26 = 135,950.40/x
  3. Step 3: Cross multiply
    243,395.28x = 335,863.26 × 135,950.40
  4. Step 4: Simplify right side
    243,395.28x = 45,660,744,542.30
  5. Step 5: Solve for x
    x = 45,660,744,542.30/243,395.28
  6. Step 6: Final answer
    x = 187,599.14

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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.