Home / 220,504.29-304,259.03-129,878.30

Finding the Fourth Proportional to 220,504.29, 304,259.03 and 129,878.30

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Solution

The fourth proportional to 220,504.29, 304,259.03 and 129,878.30 is: 179,210.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,504.29 : 304,259.03 = 129,878.30 : x
  2. Step 2: Convert to fraction form
    220,504.29/304,259.03 = 129,878.30/x
  3. Step 3: Cross multiply
    220,504.29x = 304,259.03 × 129,878.30
  4. Step 4: Simplify right side
    220,504.29x = 39,516,645,576.05
  5. Step 5: Solve for x
    x = 39,516,645,576.05/220,504.29
  6. Step 6: Final answer
    x = 179,210.33

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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.