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Finding the Fourth Proportional to 356,316.33, 491,689.92 and 203,350.26

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Solution

The fourth proportional to 356,316.33, 491,689.92 and 203,350.26 is: 280,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,316.33 : 491,689.92 = 203,350.26 : x
  2. Step 2: Convert to fraction form
    356,316.33/491,689.92 = 203,350.26/x
  3. Step 3: Cross multiply
    356,316.33x = 491,689.92 × 203,350.26
  4. Step 4: Simplify right side
    356,316.33x = 99,985,273,071.38
  5. Step 5: Solve for x
    x = 99,985,273,071.38/356,316.33
  6. Step 6: Final answer
    x = 280,608.17

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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.