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Finding the Fourth Proportional to 638.06, 957.07 and 175.87

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Solution

The fourth proportional to 638.06, 957.07 and 175.87 is: 263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638.06 : 957.07 = 175.87 : x
  2. Step 2: Convert to fraction form
    638.06/957.07 = 175.87/x
  3. Step 3: Cross multiply
    638.06x = 957.07 × 175.87
  4. Step 4: Simplify right side
    638.06x = 168,319.90
  5. Step 5: Solve for x
    x = 168,319.90/638.06
  6. Step 6: Final answer
    x = 263.80

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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.