Home / 239,213.10-330,118.30-131,782.40

Finding the Fourth Proportional to 239,213.10, 330,118.30 and 131,782.40

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Solution

The fourth proportional to 239,213.10, 330,118.30 and 131,782.40 is: 181,862.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,213.10 : 330,118.30 = 131,782.40 : x
  2. Step 2: Convert to fraction form
    239,213.10/330,118.30 = 131,782.40/x
  3. Step 3: Cross multiply
    239,213.10x = 330,118.30 × 131,782.40
  4. Step 4: Simplify right side
    239,213.10x = 43,503,781,857.92
  5. Step 5: Solve for x
    x = 43,503,781,857.92/239,213.10
  6. Step 6: Final answer
    x = 181,862.04

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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.