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Finding the Fourth Proportional to 199,362.64, 275,116.96 and 108,718.80

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Solution

The fourth proportional to 199,362.64, 275,116.96 and 108,718.80 is: 150,030.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,362.64 : 275,116.96 = 108,718.80 : x
  2. Step 2: Convert to fraction form
    199,362.64/275,116.96 = 108,718.80/x
  3. Step 3: Cross multiply
    199,362.64x = 275,116.96 × 108,718.80
  4. Step 4: Simplify right side
    199,362.64x = 29,910,385,750.85
  5. Step 5: Solve for x
    x = 29,910,385,750.85/199,362.64
  6. Step 6: Final answer
    x = 150,030.04

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1.5x scale

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.