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Finding the Fourth Proportional to 243,096.16, 335,489.52 and 135,687.16

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Solution

The fourth proportional to 243,096.16, 335,489.52 and 135,687.16 is: 187,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,096.16 : 335,489.52 = 135,687.16 : x
  2. Step 2: Convert to fraction form
    243,096.16/335,489.52 = 135,687.16/x
  3. Step 3: Cross multiply
    243,096.16x = 335,489.52 × 135,687.16
  4. Step 4: Simplify right side
    243,096.16x = 45,521,620,178.56
  5. Step 5: Solve for x
    x = 45,521,620,178.56/243,096.16
  6. Step 6: Final answer
    x = 187,257.67

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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.