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Finding the Fourth Proportional to 220,181.76, 330,272.64 and 95,520

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Solution

The fourth proportional to 220,181.76, 330,272.64 and 95,520 is: 143,280

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,181.76 : 330,272.64 = 95,520 : x
  2. Step 2: Convert to fraction form
    220,181.76/330,272.64 = 95,520/x
  3. Step 3: Cross multiply
    220,181.76x = 330,272.64 × 95,520
  4. Step 4: Simplify right side
    220,181.76x = 31,547,642,572.80
  5. Step 5: Solve for x
    x = 31,547,642,572.80/220,181.76
  6. Step 6: Final answer
    x = 143,280

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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.