Home / 215,942.28-298,000.80-120,446.52

Finding the Fourth Proportional to 215,942.28, 298,000.80 and 120,446.52

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Solution

The fourth proportional to 215,942.28, 298,000.80 and 120,446.52 is: 166,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,942.28 : 298,000.80 = 120,446.52 : x
  2. Step 2: Convert to fraction form
    215,942.28/298,000.80 = 120,446.52/x
  3. Step 3: Cross multiply
    215,942.28x = 298,000.80 × 120,446.52
  4. Step 4: Simplify right side
    215,942.28x = 35,893,159,317.22
  5. Step 5: Solve for x
    x = 35,893,159,317.22/215,942.28
  6. Step 6: Final answer
    x = 166,216.45

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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.