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Finding the Fourth Proportional to 590.51, 885.69 and 243.63

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Solution

The fourth proportional to 590.51, 885.69 and 243.63 is: 365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.51 : 885.69 = 243.63 : x
  2. Step 2: Convert to fraction form
    590.51/885.69 = 243.63/x
  3. Step 3: Cross multiply
    590.51x = 885.69 × 243.63
  4. Step 4: Simplify right side
    590.51x = 215,780.65
  5. Step 5: Solve for x
    x = 215,780.65/590.51
  6. Step 6: Final answer
    x = 365.42

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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.