Home / 621,093.20-931,836.65-221,725.13

Finding the Fourth Proportional to 621,093.20, 931,836.65 and 221,725.13

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Solution

The fourth proportional to 621,093.20, 931,836.65 and 221,725.13 is: 332,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,093.20 : 931,836.65 = 221,725.13 : x
  2. Step 2: Convert to fraction form
    621,093.20/931,836.65 = 221,725.13/x
  3. Step 3: Cross multiply
    621,093.20x = 931,836.65 × 221,725.13
  4. Step 4: Simplify right side
    621,093.20x = 206,611,596,592.21
  5. Step 5: Solve for x
    x = 206,611,596,592.21/621,093.20
  6. Step 6: Final answer
    x = 332,657.96

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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.