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Finding the Fourth Proportional to 220,805.89, 304,751.88 and 130,156.48

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Solution

The fourth proportional to 220,805.89, 304,751.88 and 130,156.48 is: 179,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,805.89 : 304,751.88 = 130,156.48 : x
  2. Step 2: Convert to fraction form
    220,805.89/304,751.88 = 130,156.48/x
  3. Step 3: Cross multiply
    220,805.89x = 304,751.88 × 130,156.48
  4. Step 4: Simplify right side
    220,805.89x = 39,665,431,974.18
  5. Step 5: Solve for x
    x = 39,665,431,974.18/220,805.89
  6. Step 6: Final answer
    x = 179,639.37

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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.