Home / 232,247.31-320,499.99-128,880.48

Finding the Fourth Proportional to 232,247.31, 320,499.99 and 128,880.48

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Solution

The fourth proportional to 232,247.31, 320,499.99 and 128,880.48 is: 177,854.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,247.31 : 320,499.99 = 128,880.48 : x
  2. Step 2: Convert to fraction form
    232,247.31/320,499.99 = 128,880.48/x
  3. Step 3: Cross multiply
    232,247.31x = 320,499.99 × 128,880.48
  4. Step 4: Simplify right side
    232,247.31x = 41,306,192,551.20
  5. Step 5: Solve for x
    x = 41,306,192,551.20/232,247.31
  6. Step 6: Final answer
    x = 177,854.34

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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.