Home / 220,986.55-304,947.08-130,321.74

Finding the Fourth Proportional to 220,986.55, 304,947.08 and 130,321.74

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Solution

The fourth proportional to 220,986.55, 304,947.08 and 130,321.74 is: 179,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,986.55 : 304,947.08 = 130,321.74 : x
  2. Step 2: Convert to fraction form
    220,986.55/304,947.08 = 130,321.74/x
  3. Step 3: Cross multiply
    220,986.55x = 304,947.08 × 130,321.74
  4. Step 4: Simplify right side
    220,986.55x = 39,741,234,073.52
  5. Step 5: Solve for x
    x = 39,741,234,073.52/220,986.55
  6. Step 6: Final answer
    x = 179,835.53

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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.