Home / 215,941.28-297,999.42-120,445.52

Finding the Fourth Proportional to 215,941.28, 297,999.42 and 120,445.52

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Solution

The fourth proportional to 215,941.28, 297,999.42 and 120,445.52 is: 166,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,941.28 : 297,999.42 = 120,445.52 : x
  2. Step 2: Convert to fraction form
    215,941.28/297,999.42 = 120,445.52/x
  3. Step 3: Cross multiply
    215,941.28x = 297,999.42 × 120,445.52
  4. Step 4: Simplify right side
    215,941.28x = 35,892,695,101.60
  5. Step 5: Solve for x
    x = 35,892,695,101.60/215,941.28
  6. Step 6: Final answer
    x = 166,215.07

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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.