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Finding the Fourth Proportional to 477.83, 659.53 and 291.45

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Solution

The fourth proportional to 477.83, 659.53 and 291.45 is: 402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.83 : 659.53 = 291.45 : x
  2. Step 2: Convert to fraction form
    477.83/659.53 = 291.45/x
  3. Step 3: Cross multiply
    477.83x = 659.53 × 291.45
  4. Step 4: Simplify right side
    477.83x = 192,217.91
  5. Step 5: Solve for x
    x = 192,217.91/477.83
  6. Step 6: Final answer
    x = 402.27

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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.