Home / 243,341.13-335,807.24-135,912.72

Finding the Fourth Proportional to 243,341.13, 335,807.24 and 135,912.72

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Solution

The fourth proportional to 243,341.13, 335,807.24 and 135,912.72 is: 187,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,341.13 : 335,807.24 = 135,912.72 : x
  2. Step 2: Convert to fraction form
    243,341.13/335,807.24 = 135,912.72/x
  3. Step 3: Cross multiply
    243,341.13x = 335,807.24 × 135,912.72
  4. Step 4: Simplify right side
    243,341.13x = 45,640,474,704.53
  5. Step 5: Solve for x
    x = 45,640,474,704.53/243,341.13
  6. Step 6: Final answer
    x = 187,557.59

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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.