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Finding the Fourth Proportional to 448.04, 672.14 and 159.48

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Solution

The fourth proportional to 448.04, 672.14 and 159.48 is: 239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.04 : 672.14 = 159.48 : x
  2. Step 2: Convert to fraction form
    448.04/672.14 = 159.48/x
  3. Step 3: Cross multiply
    448.04x = 672.14 × 159.48
  4. Step 4: Simplify right side
    448.04x = 107,192.89
  5. Step 5: Solve for x
    x = 107,192.89/448.04
  6. Step 6: Final answer
    x = 239.25

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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.