Home / 232,275.12-320,564.16-136,779.78

Finding the Fourth Proportional to 232,275.12, 320,564.16 and 136,779.78

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Solution

The fourth proportional to 232,275.12, 320,564.16 and 136,779.78 is: 188,770.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,275.12 : 320,564.16 = 136,779.78 : x
  2. Step 2: Convert to fraction form
    232,275.12/320,564.16 = 136,779.78/x
  3. Step 3: Cross multiply
    232,275.12x = 320,564.16 × 136,779.78
  4. Step 4: Simplify right side
    232,275.12x = 43,846,695,280.68
  5. Step 5: Solve for x
    x = 43,846,695,280.68/232,275.12
  6. Step 6: Final answer
    x = 188,770.52

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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.