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Finding the Fourth Proportional to 571.59, 788.72 and 335.61

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Solution

The fourth proportional to 571.59, 788.72 and 335.61 is: 463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.59 : 788.72 = 335.61 : x
  2. Step 2: Convert to fraction form
    571.59/788.72 = 335.61/x
  3. Step 3: Cross multiply
    571.59x = 788.72 × 335.61
  4. Step 4: Simplify right side
    571.59x = 264,700.64
  5. Step 5: Solve for x
    x = 264,700.64/571.59
  6. Step 6: Final answer
    x = 463.10

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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.