Home / 219,820.20-329,730.30-145,024.80

Finding the Fourth Proportional to 219,820.20, 329,730.30 and 145,024.80

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Solution

The fourth proportional to 219,820.20, 329,730.30 and 145,024.80 is: 217,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,820.20 : 329,730.30 = 145,024.80 : x
  2. Step 2: Convert to fraction form
    219,820.20/329,730.30 = 145,024.80/x
  3. Step 3: Cross multiply
    219,820.20x = 329,730.30 × 145,024.80
  4. Step 4: Simplify right side
    219,820.20x = 47,819,070,811.44
  5. Step 5: Solve for x
    x = 47,819,070,811.44/219,820.20
  6. Step 6: Final answer
    x = 217,537.20

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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.