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Finding the Fourth Proportional to 372.73, 514.03 and 302.77

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Solution

The fourth proportional to 372.73, 514.03 and 302.77 is: 417.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.73 : 514.03 = 302.77 : x
  2. Step 2: Convert to fraction form
    372.73/514.03 = 302.77/x
  3. Step 3: Cross multiply
    372.73x = 514.03 × 302.77
  4. Step 4: Simplify right side
    372.73x = 155,632.86
  5. Step 5: Solve for x
    x = 155,632.86/372.73
  6. Step 6: Final answer
    x = 417.55

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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.