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Finding the Fourth Proportional to 231,612.60, 318,962.12 and 199,084.62

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Solution

The fourth proportional to 231,612.60, 318,962.12 and 199,084.62 is: 274,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,612.60 : 318,962.12 = 199,084.62 : x
  2. Step 2: Convert to fraction form
    231,612.60/318,962.12 = 199,084.62/x
  3. Step 3: Cross multiply
    231,612.60x = 318,962.12 × 199,084.62
  4. Step 4: Simplify right side
    231,612.60x = 63,500,452,454.59
  5. Step 5: Solve for x
    x = 63,500,452,454.59/231,612.60
  6. Step 6: Final answer
    x = 274,166.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.