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Finding the Fourth Proportional to 591.42, 887.14 and 347.77

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Solution

The fourth proportional to 591.42, 887.14 and 347.77 is: 521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.42 : 887.14 = 347.77 : x
  2. Step 2: Convert to fraction form
    591.42/887.14 = 347.77/x
  3. Step 3: Cross multiply
    591.42x = 887.14 × 347.77
  4. Step 4: Simplify right side
    591.42x = 308,520.68
  5. Step 5: Solve for x
    x = 308,520.68/591.42
  6. Step 6: Final answer
    x = 521.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.