Home / 291,785.20-402,995.74-196,125.82

Finding the Fourth Proportional to 291,785.20, 402,995.74 and 196,125.82

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Solution

The fourth proportional to 291,785.20, 402,995.74 and 196,125.82 is: 270,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,785.20 : 402,995.74 = 196,125.82 : x
  2. Step 2: Convert to fraction form
    291,785.20/402,995.74 = 196,125.82/x
  3. Step 3: Cross multiply
    291,785.20x = 402,995.74 × 196,125.82
  4. Step 4: Simplify right side
    291,785.20x = 79,037,871,100.79
  5. Step 5: Solve for x
    x = 79,037,871,100.79/291,785.20
  6. Step 6: Final answer
    x = 270,876.90

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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.