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Finding the Fourth Proportional to 590.28, 885.36 and 243.66

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Solution

The fourth proportional to 590.28, 885.36 and 243.66 is: 365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.28 : 885.36 = 243.66 : x
  2. Step 2: Convert to fraction form
    590.28/885.36 = 243.66/x
  3. Step 3: Cross multiply
    590.28x = 885.36 × 243.66
  4. Step 4: Simplify right side
    590.28x = 215,726.82
  5. Step 5: Solve for x
    x = 215,726.82/590.28
  6. Step 6: Final answer
    x = 365.47

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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.