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Finding the Fourth Proportional to 206,699.40, 310,049.10 and 88,382.70

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Solution

The fourth proportional to 206,699.40, 310,049.10 and 88,382.70 is: 132,574.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,699.40 : 310,049.10 = 88,382.70 : x
  2. Step 2: Convert to fraction form
    206,699.40/310,049.10 = 88,382.70/x
  3. Step 3: Cross multiply
    206,699.40x = 310,049.10 × 88,382.70
  4. Step 4: Simplify right side
    206,699.40x = 27,402,976,590.57
  5. Step 5: Solve for x
    x = 27,402,976,590.57/206,699.40
  6. Step 6: Final answer
    x = 132,574.05

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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.