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Finding the Fourth Proportional to 170,500.80, 255,535.20 and 65,179.20

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Solution

The fourth proportional to 170,500.80, 255,535.20 and 65,179.20 is: 97,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,500.80 : 255,535.20 = 65,179.20 : x
  2. Step 2: Convert to fraction form
    170,500.80/255,535.20 = 65,179.20/x
  3. Step 3: Cross multiply
    170,500.80x = 255,535.20 × 65,179.20
  4. Step 4: Simplify right side
    170,500.80x = 16,655,579,907.84
  5. Step 5: Solve for x
    x = 16,655,579,907.84/170,500.80
  6. Step 6: Final answer
    x = 97,686.23

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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.