Home / 379,730.60-569,682.30-221,877.80

Finding the Fourth Proportional to 379,730.60, 569,682.30 and 221,877.80

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Solution

The fourth proportional to 379,730.60, 569,682.30 and 221,877.80 is: 332,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,730.60 : 569,682.30 = 221,877.80 : x
  2. Step 2: Convert to fraction form
    379,730.60/569,682.30 = 221,877.80/x
  3. Step 3: Cross multiply
    379,730.60x = 569,682.30 × 221,877.80
  4. Step 4: Simplify right side
    379,730.60x = 126,399,855,422.94
  5. Step 5: Solve for x
    x = 126,399,855,422.94/379,730.60
  6. Step 6: Final answer
    x = 332,867.18

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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.