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Finding the Fourth Proportional to 259.54, 358.17 and 147.50

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Solution

The fourth proportional to 259.54, 358.17 and 147.50 is: 203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.54 : 358.17 = 147.50 : x
  2. Step 2: Convert to fraction form
    259.54/358.17 = 147.50/x
  3. Step 3: Cross multiply
    259.54x = 358.17 × 147.50
  4. Step 4: Simplify right side
    259.54x = 52,830.08
  5. Step 5: Solve for x
    x = 52,830.08/259.54
  6. Step 6: Final answer
    x = 203.56

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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.