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Finding the Fourth Proportional to 423.60, 584.55 and 237.09

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Solution

The fourth proportional to 423.60, 584.55 and 237.09 is: 327.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.60 : 584.55 = 237.09 : x
  2. Step 2: Convert to fraction form
    423.60/584.55 = 237.09/x
  3. Step 3: Cross multiply
    423.60x = 584.55 × 237.09
  4. Step 4: Simplify right side
    423.60x = 138,590.96
  5. Step 5: Solve for x
    x = 138,590.96/423.60
  6. Step 6: Final answer
    x = 327.17

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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.