Home / 408,308.40-563,465.09-227,014.61

Finding the Fourth Proportional to 408,308.40, 563,465.09 and 227,014.61

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Solution

The fourth proportional to 408,308.40, 563,465.09 and 227,014.61 is: 313,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,308.40 : 563,465.09 = 227,014.61 : x
  2. Step 2: Convert to fraction form
    408,308.40/563,465.09 = 227,014.61/x
  3. Step 3: Cross multiply
    408,308.40x = 563,465.09 × 227,014.61
  4. Step 4: Simplify right side
    408,308.40x = 127,914,803,702.57
  5. Step 5: Solve for x
    x = 127,914,803,702.57/408,308.40
  6. Step 6: Final answer
    x = 313,279.87

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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.