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Finding the Fourth Proportional to 475,318.28, 655,939.22 and 274,114.28

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Solution

The fourth proportional to 475,318.28, 655,939.22 and 274,114.28 is: 378,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,318.28 : 655,939.22 = 274,114.28 : x
  2. Step 2: Convert to fraction form
    475,318.28/655,939.22 = 274,114.28/x
  3. Step 3: Cross multiply
    475,318.28x = 655,939.22 × 274,114.28
  4. Step 4: Simplify right side
    475,318.28x = 179,802,303,734.37
  5. Step 5: Solve for x
    x = 179,802,303,734.37/475,318.28
  6. Step 6: Final answer
    x = 378,277.70

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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.