Home / 427,218.76-641,213.34-227,705.32

Finding the Fourth Proportional to 427,218.76, 641,213.34 and 227,705.32

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Solution

The fourth proportional to 427,218.76, 641,213.34 and 227,705.32 is: 341,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,218.76 : 641,213.34 = 227,705.32 : x
  2. Step 2: Convert to fraction form
    427,218.76/641,213.34 = 227,705.32/x
  3. Step 3: Cross multiply
    427,218.76x = 641,213.34 × 227,705.32
  4. Step 4: Simplify right side
    427,218.76x = 146,007,688,772.97
  5. Step 5: Solve for x
    x = 146,007,688,772.97/427,218.76
  6. Step 6: Final answer
    x = 341,763.29

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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.