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Finding the Fourth Proportional to 502.06, 751.98 and 258.82

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Solution

The fourth proportional to 502.06, 751.98 and 258.82 is: 387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.06 : 751.98 = 258.82 : x
  2. Step 2: Convert to fraction form
    502.06/751.98 = 258.82/x
  3. Step 3: Cross multiply
    502.06x = 751.98 × 258.82
  4. Step 4: Simplify right side
    502.06x = 194,627.46
  5. Step 5: Solve for x
    x = 194,627.46/502.06
  6. Step 6: Final answer
    x = 387.66

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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.