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Finding the Fourth Proportional to 377.13, 565.62 and 103.15

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Solution

The fourth proportional to 377.13, 565.62 and 103.15 is: 154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.13 : 565.62 = 103.15 : x
  2. Step 2: Convert to fraction form
    377.13/565.62 = 103.15/x
  3. Step 3: Cross multiply
    377.13x = 565.62 × 103.15
  4. Step 4: Simplify right side
    377.13x = 58,344.02
  5. Step 5: Solve for x
    x = 58,344.02/377.13
  6. Step 6: Final answer
    x = 154.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.