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Finding the Fourth Proportional to 220,143.80, 330,215.70 and 62,370.20

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Solution

The fourth proportional to 220,143.80, 330,215.70 and 62,370.20 is: 93,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,143.80 : 330,215.70 = 62,370.20 : x
  2. Step 2: Convert to fraction form
    220,143.80/330,215.70 = 62,370.20/x
  3. Step 3: Cross multiply
    220,143.80x = 330,215.70 × 62,370.20
  4. Step 4: Simplify right side
    220,143.80x = 20,595,619,252.14
  5. Step 5: Solve for x
    x = 20,595,619,252.14/220,143.80
  6. Step 6: Final answer
    x = 93,555.30

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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.