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Finding the Fourth Proportional to 321,655.54, 482,640.51 and 227,490.85

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Solution

The fourth proportional to 321,655.54, 482,640.51 and 227,490.85 is: 341,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,655.54 : 482,640.51 = 227,490.85 : x
  2. Step 2: Convert to fraction form
    321,655.54/482,640.51 = 227,490.85/x
  3. Step 3: Cross multiply
    321,655.54x = 482,640.51 × 227,490.85
  4. Step 4: Simplify right side
    321,655.54x = 109,796,298,089.01
  5. Step 5: Solve for x
    x = 109,796,298,089.01/321,655.54
  6. Step 6: Final answer
    x = 341,347.45

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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.