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Finding the Fourth Proportional to 312,108.80, 466,996.80 and 207,132.80

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Solution

The fourth proportional to 312,108.80, 466,996.80 and 207,132.80 is: 309,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,108.80 : 466,996.80 = 207,132.80 : x
  2. Step 2: Convert to fraction form
    312,108.80/466,996.80 = 207,132.80/x
  3. Step 3: Cross multiply
    312,108.80x = 466,996.80 × 207,132.80
  4. Step 4: Simplify right side
    312,108.80x = 96,730,354,775.04
  5. Step 5: Solve for x
    x = 96,730,354,775.04/312,108.80
  6. Step 6: Final answer
    x = 309,925.11

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1.5x scale

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.