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Finding the Fourth Proportional to 590.55, 814.62 and 354.43

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Solution

The fourth proportional to 590.55, 814.62 and 354.43 is: 488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.55 : 814.62 = 354.43 : x
  2. Step 2: Convert to fraction form
    590.55/814.62 = 354.43/x
  3. Step 3: Cross multiply
    590.55x = 814.62 × 354.43
  4. Step 4: Simplify right side
    590.55x = 288,725.77
  5. Step 5: Solve for x
    x = 288,725.77/590.55
  6. Step 6: Final answer
    x = 488.91

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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.