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Finding the Fourth Proportional to 373.80, 556.51 and 372

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Solution

The fourth proportional to 373.80, 556.51 and 372 is: 553.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.80 : 556.51 = 372 : x
  2. Step 2: Convert to fraction form
    373.80/556.51 = 372/x
  3. Step 3: Cross multiply
    373.80x = 556.51 × 372
  4. Step 4: Simplify right side
    373.80x = 207,019.86
  5. Step 5: Solve for x
    x = 207,019.86/373.80
  6. Step 6: Final answer
    x = 553.83

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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.