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Finding the Fourth Proportional to 373.25, 557.72 and 284.91

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Solution

The fourth proportional to 373.25, 557.72 and 284.91 is: 425.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.25 : 557.72 = 284.91 : x
  2. Step 2: Convert to fraction form
    373.25/557.72 = 284.91/x
  3. Step 3: Cross multiply
    373.25x = 557.72 × 284.91
  4. Step 4: Simplify right side
    373.25x = 158,900.72
  5. Step 5: Solve for x
    x = 158,900.72/373.25
  6. Step 6: Final answer
    x = 425.73

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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.