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Finding the Fourth Proportional to 220,245.57, 330,390.17 and 70,448.25

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Solution

The fourth proportional to 220,245.57, 330,390.17 and 70,448.25 is: 105,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,245.57 : 330,390.17 = 70,448.25 : x
  2. Step 2: Convert to fraction form
    220,245.57/330,390.17 = 70,448.25/x
  3. Step 3: Cross multiply
    220,245.57x = 330,390.17 × 70,448.25
  4. Step 4: Simplify right side
    220,245.57x = 23,275,408,941.46
  5. Step 5: Solve for x
    x = 23,275,408,941.46/220,245.57
  6. Step 6: Final answer
    x = 105,679.35

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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.