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Finding the Fourth Proportional to 324.95, 448.54 and 237.74

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Solution

The fourth proportional to 324.95, 448.54 and 237.74 is: 328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.95 : 448.54 = 237.74 : x
  2. Step 2: Convert to fraction form
    324.95/448.54 = 237.74/x
  3. Step 3: Cross multiply
    324.95x = 448.54 × 237.74
  4. Step 4: Simplify right side
    324.95x = 106,633.06
  5. Step 5: Solve for x
    x = 106,633.06/324.95
  6. Step 6: Final answer
    x = 328.16

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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.