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Finding the Fourth Proportional to 220,959.92, 304,871.64 and 130,308.80

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Solution

The fourth proportional to 220,959.92, 304,871.64 and 130,308.80 is: 179,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,959.92 : 304,871.64 = 130,308.80 : x
  2. Step 2: Convert to fraction form
    220,959.92/304,871.64 = 130,308.80/x
  3. Step 3: Cross multiply
    220,959.92x = 304,871.64 × 130,308.80
  4. Step 4: Simplify right side
    220,959.92x = 39,727,457,562.43
  5. Step 5: Solve for x
    x = 39,727,457,562.43/220,959.92
  6. Step 6: Final answer
    x = 179,794.86

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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.