Home / 219,620.20-329,430.30-185,405.80

Finding the Fourth Proportional to 219,620.20, 329,430.30 and 185,405.80

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Solution

The fourth proportional to 219,620.20, 329,430.30 and 185,405.80 is: 278,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,620.20 : 329,430.30 = 185,405.80 : x
  2. Step 2: Convert to fraction form
    219,620.20/329,430.30 = 185,405.80/x
  3. Step 3: Cross multiply
    219,620.20x = 329,430.30 × 185,405.80
  4. Step 4: Simplify right side
    219,620.20x = 61,078,288,315.74
  5. Step 5: Solve for x
    x = 61,078,288,315.74/219,620.20
  6. Step 6: Final answer
    x = 278,108.70

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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.