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Finding the Fourth Proportional to 448.04, 672.60 and 266.60

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Solution

The fourth proportional to 448.04, 672.60 and 266.60 is: 400.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.04 : 672.60 = 266.60 : x
  2. Step 2: Convert to fraction form
    448.04/672.60 = 266.60/x
  3. Step 3: Cross multiply
    448.04x = 672.60 × 266.60
  4. Step 4: Simplify right side
    448.04x = 179,315.16
  5. Step 5: Solve for x
    x = 179,315.16/448.04
  6. Step 6: Final answer
    x = 400.22

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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.