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Finding the Fourth Proportional to 316,159.38, 436,100.46 and 220,631.22

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Solution

The fourth proportional to 316,159.38, 436,100.46 and 220,631.22 is: 304,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,159.38 : 436,100.46 = 220,631.22 : x
  2. Step 2: Convert to fraction form
    316,159.38/436,100.46 = 220,631.22/x
  3. Step 3: Cross multiply
    316,159.38x = 436,100.46 × 220,631.22
  4. Step 4: Simplify right side
    316,159.38x = 96,217,376,532.36
  5. Step 5: Solve for x
    x = 96,217,376,532.36/316,159.38
  6. Step 6: Final answer
    x = 304,331.87

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1.5x scale

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.