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Finding the Fourth Proportional to 377.28, 562.68 and 370.80

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Solution

The fourth proportional to 377.28, 562.68 and 370.80 is: 553.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.28 : 562.68 = 370.80 : x
  2. Step 2: Convert to fraction form
    377.28/562.68 = 370.80/x
  3. Step 3: Cross multiply
    377.28x = 562.68 × 370.80
  4. Step 4: Simplify right side
    377.28x = 208,641.74
  5. Step 5: Solve for x
    x = 208,641.74/377.28
  6. Step 6: Final answer
    x = 553.02

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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.