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Finding the Fourth Proportional to 410.95, 612.68 and 372.07

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Solution

The fourth proportional to 410.95, 612.68 and 372.07 is: 554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.95 : 612.68 = 372.07 : x
  2. Step 2: Convert to fraction form
    410.95/612.68 = 372.07/x
  3. Step 3: Cross multiply
    410.95x = 612.68 × 372.07
  4. Step 4: Simplify right side
    410.95x = 227,959.85
  5. Step 5: Solve for x
    x = 227,959.85/410.95
  6. Step 6: Final answer
    x = 554.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.