Home / 220,215.98-330,319.51-70,456.25

Finding the Fourth Proportional to 220,215.98, 330,319.51 and 70,456.25

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Solution

The fourth proportional to 220,215.98, 330,319.51 and 70,456.25 is: 105,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,215.98 : 330,319.51 = 70,456.25 : x
  2. Step 2: Convert to fraction form
    220,215.98/330,319.51 = 70,456.25/x
  3. Step 3: Cross multiply
    220,215.98x = 330,319.51 × 70,456.25
  4. Step 4: Simplify right side
    220,215.98x = 23,273,074,626.10
  5. Step 5: Solve for x
    x = 23,273,074,626.10/220,215.98
  6. Step 6: Final answer
    x = 105,682.95

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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.