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Finding the Fourth Proportional to 206,904.40, 310,356.60 and 88,587.70

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Solution

The fourth proportional to 206,904.40, 310,356.60 and 88,587.70 is: 132,881.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,904.40 : 310,356.60 = 88,587.70 : x
  2. Step 2: Convert to fraction form
    206,904.40/310,356.60 = 88,587.70/x
  3. Step 3: Cross multiply
    206,904.40x = 310,356.60 × 88,587.70
  4. Step 4: Simplify right side
    206,904.40x = 27,493,777,373.82
  5. Step 5: Solve for x
    x = 27,493,777,373.82/206,904.40
  6. Step 6: Final answer
    x = 132,881.55

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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.