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Finding the Fourth Proportional to 423,350.66, 635,136.66 and 245,686.88

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Solution

The fourth proportional to 423,350.66, 635,136.66 and 245,686.88 is: 368,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,350.66 : 635,136.66 = 245,686.88 : x
  2. Step 2: Convert to fraction form
    423,350.66/635,136.66 = 245,686.88/x
  3. Step 3: Cross multiply
    423,350.66x = 635,136.66 × 245,686.88
  4. Step 4: Simplify right side
    423,350.66x = 156,044,745,956.86
  5. Step 5: Solve for x
    x = 156,044,745,956.86/423,350.66
  6. Step 6: Final answer
    x = 368,594.55

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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.