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Finding the Fourth Proportional to 477.77, 659.32 and 267.92

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Solution

The fourth proportional to 477.77, 659.32 and 267.92 is: 369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.77 : 659.32 = 267.92 : x
  2. Step 2: Convert to fraction form
    477.77/659.32 = 267.92/x
  3. Step 3: Cross multiply
    477.77x = 659.32 × 267.92
  4. Step 4: Simplify right side
    477.77x = 176,648.74
  5. Step 5: Solve for x
    x = 176,648.74/477.77
  6. Step 6: Final answer
    x = 369.74

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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.