Home / 274,948.20-412,422.30-212,740.20

Finding the Fourth Proportional to 274,948.20, 412,422.30 and 212,740.20

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Solution

The fourth proportional to 274,948.20, 412,422.30 and 212,740.20 is: 319,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,948.20 : 412,422.30 = 212,740.20 : x
  2. Step 2: Convert to fraction form
    274,948.20/412,422.30 = 212,740.20/x
  3. Step 3: Cross multiply
    274,948.20x = 412,422.30 × 212,740.20
  4. Step 4: Simplify right side
    274,948.20x = 87,738,802,586.46
  5. Step 5: Solve for x
    x = 87,738,802,586.46/274,948.20
  6. Step 6: Final answer
    x = 319,110.30

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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.