Home / 215,919.28-297,969.06-120,423.52

Finding the Fourth Proportional to 215,919.28, 297,969.06 and 120,423.52

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Solution

The fourth proportional to 215,919.28, 297,969.06 and 120,423.52 is: 166,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,919.28 : 297,969.06 = 120,423.52 : x
  2. Step 2: Convert to fraction form
    215,919.28/297,969.06 = 120,423.52/x
  3. Step 3: Cross multiply
    215,919.28x = 297,969.06 × 120,423.52
  4. Step 4: Simplify right side
    215,919.28x = 35,882,483,056.29
  5. Step 5: Solve for x
    x = 35,882,483,056.29/215,919.28
  6. Step 6: Final answer
    x = 166,184.71

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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.