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Finding the Fourth Proportional to 207,240.60, 310,860.90 and 88,891.80

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Solution

The fourth proportional to 207,240.60, 310,860.90 and 88,891.80 is: 133,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,240.60 : 310,860.90 = 88,891.80 : x
  2. Step 2: Convert to fraction form
    207,240.60/310,860.90 = 88,891.80/x
  3. Step 3: Cross multiply
    207,240.60x = 310,860.90 × 88,891.80
  4. Step 4: Simplify right side
    207,240.60x = 27,632,984,950.62
  5. Step 5: Solve for x
    x = 27,632,984,950.62/207,240.60
  6. Step 6: Final answer
    x = 133,337.70

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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.