Home / 219,310.70-328,966.05-144,515.30

Finding the Fourth Proportional to 219,310.70, 328,966.05 and 144,515.30

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Solution

The fourth proportional to 219,310.70, 328,966.05 and 144,515.30 is: 216,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,310.70 : 328,966.05 = 144,515.30 : x
  2. Step 2: Convert to fraction form
    219,310.70/328,966.05 = 144,515.30/x
  3. Step 3: Cross multiply
    219,310.70x = 328,966.05 × 144,515.30
  4. Step 4: Simplify right side
    219,310.70x = 47,540,627,405.57
  5. Step 5: Solve for x
    x = 47,540,627,405.57/219,310.70
  6. Step 6: Final answer
    x = 216,772.95

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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.