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Finding the Fourth Proportional to 206,018.91, 310,432.17 and 169,399.32

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Solution

The fourth proportional to 206,018.91, 310,432.17 and 169,399.32 is: 255,253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,018.91 : 310,432.17 = 169,399.32 : x
  2. Step 2: Convert to fraction form
    206,018.91/310,432.17 = 169,399.32/x
  3. Step 3: Cross multiply
    206,018.91x = 310,432.17 × 169,399.32
  4. Step 4: Simplify right side
    206,018.91x = 52,586,998,504.12
  5. Step 5: Solve for x
    x = 52,586,998,504.12/206,018.91
  6. Step 6: Final answer
    x = 255,253.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.