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Finding the Fourth Proportional to 584.75, 877.12 and 260.15

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Solution

The fourth proportional to 584.75, 877.12 and 260.15 is: 390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.75 : 877.12 = 260.15 : x
  2. Step 2: Convert to fraction form
    584.75/877.12 = 260.15/x
  3. Step 3: Cross multiply
    584.75x = 877.12 × 260.15
  4. Step 4: Simplify right side
    584.75x = 228,177.73
  5. Step 5: Solve for x
    x = 228,177.73/584.75
  6. Step 6: Final answer
    x = 390.21

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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.