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Finding the Fourth Proportional to 316,659.80, 436,982.00 and 180,691.29

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Solution

The fourth proportional to 316,659.80, 436,982.00 and 180,691.29 is: 249,349.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,659.80 : 436,982.00 = 180,691.29 : x
  2. Step 2: Convert to fraction form
    316,659.80/436,982.00 = 180,691.29/x
  3. Step 3: Cross multiply
    316,659.80x = 436,982.00 × 180,691.29
  4. Step 4: Simplify right side
    316,659.80x = 78,958,840,383.32
  5. Step 5: Solve for x
    x = 78,958,840,383.32/316,659.80
  6. Step 6: Final answer
    x = 249,349.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.