Home / 427,155.49-641,897.22-227,618.47

Finding the Fourth Proportional to 427,155.49, 641,897.22 and 227,618.47

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Solution

The fourth proportional to 427,155.49, 641,897.22 and 227,618.47 is: 342,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,155.49 : 641,897.22 = 227,618.47 : x
  2. Step 2: Convert to fraction form
    427,155.49/641,897.22 = 227,618.47/x
  3. Step 3: Cross multiply
    427,155.49x = 641,897.22 × 227,618.47
  4. Step 4: Simplify right side
    427,155.49x = 146,107,664,769.59
  5. Step 5: Solve for x
    x = 146,107,664,769.59/427,155.49
  6. Step 6: Final answer
    x = 342,047.96

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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.