Home / 220,987.55-304,948.46-130,322.74

Finding the Fourth Proportional to 220,987.55, 304,948.46 and 130,322.74

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Solution

The fourth proportional to 220,987.55, 304,948.46 and 130,322.74 is: 179,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,987.55 : 304,948.46 = 130,322.74 : x
  2. Step 2: Convert to fraction form
    220,987.55/304,948.46 = 130,322.74/x
  3. Step 3: Cross multiply
    220,987.55x = 304,948.46 × 130,322.74
  4. Step 4: Simplify right side
    220,987.55x = 39,741,718,865.98
  5. Step 5: Solve for x
    x = 39,741,718,865.98/220,987.55
  6. Step 6: Final answer
    x = 179,836.91

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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.