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Finding the Fourth Proportional to 437.79, 657.07 and 177.93

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Solution

The fourth proportional to 437.79, 657.07 and 177.93 is: 267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.79 : 657.07 = 177.93 : x
  2. Step 2: Convert to fraction form
    437.79/657.07 = 177.93/x
  3. Step 3: Cross multiply
    437.79x = 657.07 × 177.93
  4. Step 4: Simplify right side
    437.79x = 116,912.47
  5. Step 5: Solve for x
    x = 116,912.47/437.79
  6. Step 6: Final answer
    x = 267.05

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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.