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Finding the Fourth Proportional to 220,540.20, 304,759.20 and 180,239.25

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Solution

The fourth proportional to 220,540.20, 304,759.20 and 180,239.25 is: 249,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,540.20 : 304,759.20 = 180,239.25 : x
  2. Step 2: Convert to fraction form
    220,540.20/304,759.20 = 180,239.25/x
  3. Step 3: Cross multiply
    220,540.20x = 304,759.20 × 180,239.25
  4. Step 4: Simplify right side
    220,540.20x = 54,929,569,638.60
  5. Step 5: Solve for x
    x = 54,929,569,638.60/220,540.20
  6. Step 6: Final answer
    x = 249,068.29

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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.