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Finding the Fourth Proportional to 462,131.20, 693,196.80 and 146,612.80

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Solution

The fourth proportional to 462,131.20, 693,196.80 and 146,612.80 is: 219,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,131.20 : 693,196.80 = 146,612.80 : x
  2. Step 2: Convert to fraction form
    462,131.20/693,196.80 = 146,612.80/x
  3. Step 3: Cross multiply
    462,131.20x = 693,196.80 × 146,612.80
  4. Step 4: Simplify right side
    462,131.20x = 101,631,523,799.04
  5. Step 5: Solve for x
    x = 101,631,523,799.04/462,131.20
  6. Step 6: Final answer
    x = 219,919.20

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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.