Home / 329,457.12-494,182.08-80,139.36

Finding the Fourth Proportional to 329,457.12, 494,182.08 and 80,139.36

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Solution

The fourth proportional to 329,457.12, 494,182.08 and 80,139.36 is: 120,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,457.12 : 494,182.08 = 80,139.36 : x
  2. Step 2: Convert to fraction form
    329,457.12/494,182.08 = 80,139.36/x
  3. Step 3: Cross multiply
    329,457.12x = 494,182.08 × 80,139.36
  4. Step 4: Simplify right side
    329,457.12x = 39,603,435,614.67
  5. Step 5: Solve for x
    x = 39,603,435,614.67/329,457.12
  6. Step 6: Final answer
    x = 120,208.16

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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.