Home / 215,007.20-322,855.05-170,999.90

Finding the Fourth Proportional to 215,007.20, 322,855.05 and 170,999.90

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Solution

The fourth proportional to 215,007.20, 322,855.05 and 170,999.90 is: 256,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,007.20 : 322,855.05 = 170,999.90 : x
  2. Step 2: Convert to fraction form
    215,007.20/322,855.05 = 170,999.90/x
  3. Step 3: Cross multiply
    215,007.20x = 322,855.05 × 170,999.90
  4. Step 4: Simplify right side
    215,007.20x = 55,208,181,264.50
  5. Step 5: Solve for x
    x = 55,208,181,264.50/215,007.20
  6. Step 6: Final answer
    x = 256,773.64

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1.5x scale

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.