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Finding the Fourth Proportional to 448,168, 672,014.40 and 132,581.44

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Solution

The fourth proportional to 448,168, 672,014.40 and 132,581.44 is: 198,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,168 : 672,014.40 = 132,581.44 : x
  2. Step 2: Convert to fraction form
    448,168/672,014.40 = 132,581.44/x
  3. Step 3: Cross multiply
    448,168x = 672,014.40 × 132,581.44
  4. Step 4: Simplify right side
    448,168x = 89,096,636,852.74
  5. Step 5: Solve for x
    x = 89,096,636,852.74/448,168
  6. Step 6: Final answer
    x = 198,801.87

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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.