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Finding the Fourth Proportional to 407.61, 561.96 and 337.41

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Solution

The fourth proportional to 407.61, 561.96 and 337.41 is: 465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.61 : 561.96 = 337.41 : x
  2. Step 2: Convert to fraction form
    407.61/561.96 = 337.41/x
  3. Step 3: Cross multiply
    407.61x = 561.96 × 337.41
  4. Step 4: Simplify right side
    407.61x = 189,610.92
  5. Step 5: Solve for x
    x = 189,610.92/407.61
  6. Step 6: Final answer
    x = 465.18

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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.