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Finding the Fourth Proportional to 323,646.60, 485,452.42 and 99,007.06

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Solution

The fourth proportional to 323,646.60, 485,452.42 and 99,007.06 is: 148,505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,646.60 : 485,452.42 = 99,007.06 : x
  2. Step 2: Convert to fraction form
    323,646.60/485,452.42 = 99,007.06/x
  3. Step 3: Cross multiply
    323,646.60x = 485,452.42 × 99,007.06
  4. Step 4: Simplify right side
    323,646.60x = 48,063,216,874.09
  5. Step 5: Solve for x
    x = 48,063,216,874.09/323,646.60
  6. Step 6: Final answer
    x = 148,505.24

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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.