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Finding the Fourth Proportional to 440,200.81, 660,057.91 and 136,510.75

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Solution

The fourth proportional to 440,200.81, 660,057.91 and 136,510.75 is: 204,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,200.81 : 660,057.91 = 136,510.75 : x
  2. Step 2: Convert to fraction form
    440,200.81/660,057.91 = 136,510.75/x
  3. Step 3: Cross multiply
    440,200.81x = 660,057.91 × 136,510.75
  4. Step 4: Simplify right side
    440,200.81x = 90,105,000,337.53
  5. Step 5: Solve for x
    x = 90,105,000,337.53/440,200.81
  6. Step 6: Final answer
    x = 204,690.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.