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Finding the Fourth Proportional to 306,079.40, 459,119.10 and 95,781.80

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Solution

The fourth proportional to 306,079.40, 459,119.10 and 95,781.80 is: 143,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,079.40 : 459,119.10 = 95,781.80 : x
  2. Step 2: Convert to fraction form
    306,079.40/459,119.10 = 95,781.80/x
  3. Step 3: Cross multiply
    306,079.40x = 459,119.10 × 95,781.80
  4. Step 4: Simplify right side
    306,079.40x = 43,975,253,812.38
  5. Step 5: Solve for x
    x = 43,975,253,812.38/306,079.40
  6. Step 6: Final answer
    x = 143,672.70

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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.