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Finding the Fourth Proportional to 316,691.70, 436,926.06 and 180,627.36

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Solution

The fourth proportional to 316,691.70, 436,926.06 and 180,627.36 is: 249,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,691.70 : 436,926.06 = 180,627.36 : x
  2. Step 2: Convert to fraction form
    316,691.70/436,926.06 = 180,627.36/x
  3. Step 3: Cross multiply
    316,691.70x = 436,926.06 × 180,627.36
  4. Step 4: Simplify right side
    316,691.70x = 78,920,800,733.00
  5. Step 5: Solve for x
    x = 78,920,800,733.00/316,691.70
  6. Step 6: Final answer
    x = 249,203.88

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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.