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Finding the Fourth Proportional to 588.70, 881.70 and 345.70

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Solution

The fourth proportional to 588.70, 881.70 and 345.70 is: 517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.70 : 881.70 = 345.70 : x
  2. Step 2: Convert to fraction form
    588.70/881.70 = 345.70/x
  3. Step 3: Cross multiply
    588.70x = 881.70 × 345.70
  4. Step 4: Simplify right side
    588.70x = 304,803.69
  5. Step 5: Solve for x
    x = 304,803.69/588.70
  6. Step 6: Final answer
    x = 517.76

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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.