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Finding the Fourth Proportional to 323,999.60, 485,934.60 and 155,519.60

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Solution

The fourth proportional to 323,999.60, 485,934.60 and 155,519.60 is: 233,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,999.60 : 485,934.60 = 155,519.60 : x
  2. Step 2: Convert to fraction form
    323,999.60/485,934.60 = 155,519.60/x
  3. Step 3: Cross multiply
    323,999.60x = 485,934.60 × 155,519.60
  4. Step 4: Simplify right side
    323,999.60x = 75,572,354,618.16
  5. Step 5: Solve for x
    x = 75,572,354,618.16/323,999.60
  6. Step 6: Final answer
    x = 233,248.30

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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.