Home / 215,927.28-297,986.04-120,440.34

Finding the Fourth Proportional to 215,927.28, 297,986.04 and 120,440.34

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Solution

The fourth proportional to 215,927.28, 297,986.04 and 120,440.34 is: 166,211.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,927.28 : 297,986.04 = 120,440.34 : x
  2. Step 2: Convert to fraction form
    215,927.28/297,986.04 = 120,440.34/x
  3. Step 3: Cross multiply
    215,927.28x = 297,986.04 × 120,440.34
  4. Step 4: Simplify right side
    215,927.28x = 35,889,539,972.85
  5. Step 5: Solve for x
    x = 35,889,539,972.85/215,927.28
  6. Step 6: Final answer
    x = 166,211.24

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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.