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Finding the Fourth Proportional to 425.30, 586.85 and 259.52

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Solution

The fourth proportional to 425.30, 586.85 and 259.52 is: 358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.30 : 586.85 = 259.52 : x
  2. Step 2: Convert to fraction form
    425.30/586.85 = 259.52/x
  3. Step 3: Cross multiply
    425.30x = 586.85 × 259.52
  4. Step 4: Simplify right side
    425.30x = 152,295.08
  5. Step 5: Solve for x
    x = 152,295.08/425.30
  6. Step 6: Final answer
    x = 358.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.