Home / 329,729.08-494,899.80-130,187.20

Finding the Fourth Proportional to 329,729.08, 494,899.80 and 130,187.20

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Solution

The fourth proportional to 329,729.08, 494,899.80 and 130,187.20 is: 195,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,729.08 : 494,899.80 = 130,187.20 : x
  2. Step 2: Convert to fraction form
    329,729.08/494,899.80 = 130,187.20/x
  3. Step 3: Cross multiply
    329,729.08x = 494,899.80 × 130,187.20
  4. Step 4: Simplify right side
    329,729.08x = 64,429,619,242.56
  5. Step 5: Solve for x
    x = 64,429,619,242.56/329,729.08
  6. Step 6: Final answer
    x = 195,401.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.