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Finding the Fourth Proportional to 202,285.70, 303,678.15 and 127,405.70

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Solution

The fourth proportional to 202,285.70, 303,678.15 and 127,405.70 is: 191,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,285.70 : 303,678.15 = 127,405.70 : x
  2. Step 2: Convert to fraction form
    202,285.70/303,678.15 = 127,405.70/x
  3. Step 3: Cross multiply
    202,285.70x = 303,678.15 × 127,405.70
  4. Step 4: Simplify right side
    202,285.70x = 38,690,327,275.46
  5. Step 5: Solve for x
    x = 38,690,327,275.46/202,285.70
  6. Step 6: Final answer
    x = 191,265.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.