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Finding the Fourth Proportional to 454,668.60, 682,002.78 and 155,149.16

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Solution

The fourth proportional to 454,668.60, 682,002.78 and 155,149.16 is: 232,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,668.60 : 682,002.78 = 155,149.16 : x
  2. Step 2: Convert to fraction form
    454,668.60/682,002.78 = 155,149.16/x
  3. Step 3: Cross multiply
    454,668.60x = 682,002.78 × 155,149.16
  4. Step 4: Simplify right side
    454,668.60x = 105,812,158,434.67
  5. Step 5: Solve for x
    x = 105,812,158,434.67/454,668.60
  6. Step 6: Final answer
    x = 232,723.70

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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.