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Finding the Fourth Proportional to 439.59, 607.20 and 341.58

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Solution

The fourth proportional to 439.59, 607.20 and 341.58 is: 471.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.59 : 607.20 = 341.58 : x
  2. Step 2: Convert to fraction form
    439.59/607.20 = 341.58/x
  3. Step 3: Cross multiply
    439.59x = 607.20 × 341.58
  4. Step 4: Simplify right side
    439.59x = 207,407.38
  5. Step 5: Solve for x
    x = 207,407.38/439.59
  6. Step 6: Final answer
    x = 471.82

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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.