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Finding the Fourth Proportional to 584.20, 875.98 and 340.60

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Solution

The fourth proportional to 584.20, 875.98 and 340.60 is: 510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.20 : 875.98 = 340.60 : x
  2. Step 2: Convert to fraction form
    584.20/875.98 = 340.60/x
  3. Step 3: Cross multiply
    584.20x = 875.98 × 340.60
  4. Step 4: Simplify right side
    584.20x = 298,358.79
  5. Step 5: Solve for x
    x = 298,358.79/584.20
  6. Step 6: Final answer
    x = 510.71

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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.