Home / 225,780.04-311,608.74-130,319.56

Finding the Fourth Proportional to 225,780.04, 311,608.74 and 130,319.56

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Solution

The fourth proportional to 225,780.04, 311,608.74 and 130,319.56 is: 179,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,780.04 : 311,608.74 = 130,319.56 : x
  2. Step 2: Convert to fraction form
    225,780.04/311,608.74 = 130,319.56/x
  3. Step 3: Cross multiply
    225,780.04x = 311,608.74 × 130,319.56
  4. Step 4: Simplify right side
    225,780.04x = 40,608,713,888.95
  5. Step 5: Solve for x
    x = 40,608,713,888.95/225,780.04
  6. Step 6: Final answer
    x = 179,859.63

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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.