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Finding the Fourth Proportional to 172,852.20, 259,278.30 and 146,608.20

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Solution

The fourth proportional to 172,852.20, 259,278.30 and 146,608.20 is: 219,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,852.20 : 259,278.30 = 146,608.20 : x
  2. Step 2: Convert to fraction form
    172,852.20/259,278.30 = 146,608.20/x
  3. Step 3: Cross multiply
    172,852.20x = 259,278.30 × 146,608.20
  4. Step 4: Simplify right side
    172,852.20x = 38,012,324,862.06
  5. Step 5: Solve for x
    x = 38,012,324,862.06/172,852.20
  6. Step 6: Final answer
    x = 219,912.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.