Home / 215,925.46-297,977.55-120,438.34

Finding the Fourth Proportional to 215,925.46, 297,977.55 and 120,438.34

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Solution

The fourth proportional to 215,925.46, 297,977.55 and 120,438.34 is: 166,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,925.46 : 297,977.55 = 120,438.34 : x
  2. Step 2: Convert to fraction form
    215,925.46/297,977.55 = 120,438.34/x
  3. Step 3: Cross multiply
    215,925.46x = 297,977.55 × 120,438.34
  4. Step 4: Simplify right side
    215,925.46x = 35,887,921,479.27
  5. Step 5: Solve for x
    x = 35,887,921,479.27/215,925.46
  6. Step 6: Final answer
    x = 166,205.14

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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.