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Finding the Fourth Proportional to 637.96, 957.26 and 272.65

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Solution

The fourth proportional to 637.96, 957.26 and 272.65 is: 409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.96 : 957.26 = 272.65 : x
  2. Step 2: Convert to fraction form
    637.96/957.26 = 272.65/x
  3. Step 3: Cross multiply
    637.96x = 957.26 × 272.65
  4. Step 4: Simplify right side
    637.96x = 260,995.23
  5. Step 5: Solve for x
    x = 260,995.23/637.96
  6. Step 6: Final answer
    x = 409.11

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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.