Home / 239,751.22-330,899.57-142,961.31

Finding the Fourth Proportional to 239,751.22, 330,899.57 and 142,961.31

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Solution

The fourth proportional to 239,751.22, 330,899.57 and 142,961.31 is: 197,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,751.22 : 330,899.57 = 142,961.31 : x
  2. Step 2: Convert to fraction form
    239,751.22/330,899.57 = 142,961.31/x
  3. Step 3: Cross multiply
    239,751.22x = 330,899.57 × 142,961.31
  4. Step 4: Simplify right side
    239,751.22x = 47,305,836,005.64
  5. Step 5: Solve for x
    x = 47,305,836,005.64/239,751.22
  6. Step 6: Final answer
    x = 197,312.18

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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.