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Finding the Fourth Proportional to 373.72, 559.62 and 258.52

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Solution

The fourth proportional to 373.72, 559.62 and 258.52 is: 387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.72 : 559.62 = 258.52 : x
  2. Step 2: Convert to fraction form
    373.72/559.62 = 258.52/x
  3. Step 3: Cross multiply
    373.72x = 559.62 × 258.52
  4. Step 4: Simplify right side
    373.72x = 144,672.96
  5. Step 5: Solve for x
    x = 144,672.96/373.72
  6. Step 6: Final answer
    x = 387.12

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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.