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Finding the Fourth Proportional to 355,095.92, 490,057.39 and 202,134.18

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Solution

The fourth proportional to 355,095.92, 490,057.39 and 202,134.18 is: 278,959.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,095.92 : 490,057.39 = 202,134.18 : x
  2. Step 2: Convert to fraction form
    355,095.92/490,057.39 = 202,134.18/x
  3. Step 3: Cross multiply
    355,095.92x = 490,057.39 × 202,134.18
  4. Step 4: Simplify right side
    355,095.92x = 99,057,350,770.97
  5. Step 5: Solve for x
    x = 99,057,350,770.97/355,095.92
  6. Step 6: Final answer
    x = 278,959.41

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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.