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Finding the Fourth Proportional to 206,920.40, 310,337.40 and 88,595.60

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Solution

The fourth proportional to 206,920.40, 310,337.40 and 88,595.60 is: 132,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,920.40 : 310,337.40 = 88,595.60 : x
  2. Step 2: Convert to fraction form
    206,920.40/310,337.40 = 88,595.60/x
  3. Step 3: Cross multiply
    206,920.40x = 310,337.40 × 88,595.60
  4. Step 4: Simplify right side
    206,920.40x = 27,494,528,155.44
  5. Step 5: Solve for x
    x = 27,494,528,155.44/206,920.40
  6. Step 6: Final answer
    x = 132,874.90

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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.