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Finding the Fourth Proportional to 477.79, 659.29 and 267.94

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Solution

The fourth proportional to 477.79, 659.29 and 267.94 is: 369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.79 : 659.29 = 267.94 : x
  2. Step 2: Convert to fraction form
    477.79/659.29 = 267.94/x
  3. Step 3: Cross multiply
    477.79x = 659.29 × 267.94
  4. Step 4: Simplify right side
    477.79x = 176,647.86
  5. Step 5: Solve for x
    x = 176,647.86/477.79
  6. Step 6: Final answer
    x = 369.72

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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.