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Finding the Fourth Proportional to 584.42, 876.89 and 310.45

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Solution

The fourth proportional to 584.42, 876.89 and 310.45 is: 465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.42 : 876.89 = 310.45 : x
  2. Step 2: Convert to fraction form
    584.42/876.89 = 310.45/x
  3. Step 3: Cross multiply
    584.42x = 876.89 × 310.45
  4. Step 4: Simplify right side
    584.42x = 272,224.56
  5. Step 5: Solve for x
    x = 272,224.56/584.42
  6. Step 6: Final answer
    x = 465.80

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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.