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Finding the Fourth Proportional to 477.33, 658.77 and 290.88

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Solution

The fourth proportional to 477.33, 658.77 and 290.88 is: 401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.33 : 658.77 = 290.88 : x
  2. Step 2: Convert to fraction form
    477.33/658.77 = 290.88/x
  3. Step 3: Cross multiply
    477.33x = 658.77 × 290.88
  4. Step 4: Simplify right side
    477.33x = 191,623.02
  5. Step 5: Solve for x
    x = 191,623.02/477.33
  6. Step 6: Final answer
    x = 401.45

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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.