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Finding the Fourth Proportional to 207,212.60, 310,818.90 and 88,863.80

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Solution

The fourth proportional to 207,212.60, 310,818.90 and 88,863.80 is: 133,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,212.60 : 310,818.90 = 88,863.80 : x
  2. Step 2: Convert to fraction form
    207,212.60/310,818.90 = 88,863.80/x
  3. Step 3: Cross multiply
    207,212.60x = 310,818.90 × 88,863.80
  4. Step 4: Simplify right side
    207,212.60x = 27,620,548,565.82
  5. Step 5: Solve for x
    x = 27,620,548,565.82/207,212.60
  6. Step 6: Final answer
    x = 133,295.70

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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.