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Finding the Fourth Proportional to 356,209.32, 491,062.32 and 220,166.38

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Solution

The fourth proportional to 356,209.32, 491,062.32 and 220,166.38 is: 303,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,209.32 : 491,062.32 = 220,166.38 : x
  2. Step 2: Convert to fraction form
    356,209.32/491,062.32 = 220,166.38/x
  3. Step 3: Cross multiply
    356,209.32x = 491,062.32 × 220,166.38
  4. Step 4: Simplify right side
    356,209.32x = 108,115,413,348.80
  5. Step 5: Solve for x
    x = 108,115,413,348.80/356,209.32
  6. Step 6: Final answer
    x = 303,516.52

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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.