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Finding the Fourth Proportional to 425.61, 586.98 and 359.54

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Solution

The fourth proportional to 425.61, 586.98 and 359.54 is: 495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.61 : 586.98 = 359.54 : x
  2. Step 2: Convert to fraction form
    425.61/586.98 = 359.54/x
  3. Step 3: Cross multiply
    425.61x = 586.98 × 359.54
  4. Step 4: Simplify right side
    425.61x = 211,043.36
  5. Step 5: Solve for x
    x = 211,043.36/425.61
  6. Step 6: Final answer
    x = 495.86

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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.