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Finding the Fourth Proportional to 407.22, 562.50 and 344.94

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Solution

The fourth proportional to 407.22, 562.50 and 344.94 is: 476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.22 : 562.50 = 344.94 : x
  2. Step 2: Convert to fraction form
    407.22/562.50 = 344.94/x
  3. Step 3: Cross multiply
    407.22x = 562.50 × 344.94
  4. Step 4: Simplify right side
    407.22x = 194,028.75
  5. Step 5: Solve for x
    x = 194,028.75/407.22
  6. Step 6: Final answer
    x = 476.47

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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.