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Finding the Fourth Proportional to 437.95, 653.68 and 379.13

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Solution

The fourth proportional to 437.95, 653.68 and 379.13 is: 565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.95 : 653.68 = 379.13 : x
  2. Step 2: Convert to fraction form
    437.95/653.68 = 379.13/x
  3. Step 3: Cross multiply
    437.95x = 653.68 × 379.13
  4. Step 4: Simplify right side
    437.95x = 247,825.48
  5. Step 5: Solve for x
    x = 247,825.48/437.95
  6. Step 6: Final answer
    x = 565.88

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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.