Home / 219,618.80-329,428.20-144,839.60

Finding the Fourth Proportional to 219,618.80, 329,428.20 and 144,839.60

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Solution

The fourth proportional to 219,618.80, 329,428.20 and 144,839.60 is: 217,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,618.80 : 329,428.20 = 144,839.60 : x
  2. Step 2: Convert to fraction form
    219,618.80/329,428.20 = 144,839.60/x
  3. Step 3: Cross multiply
    219,618.80x = 329,428.20 × 144,839.60
  4. Step 4: Simplify right side
    219,618.80x = 47,714,248,716.72
  5. Step 5: Solve for x
    x = 47,714,248,716.72/219,618.80
  6. Step 6: Final answer
    x = 217,259.40

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1.5x scale

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.