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Finding the Fourth Proportional to 220,171.80, 330,257.70 and 157,963.80

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Solution

The fourth proportional to 220,171.80, 330,257.70 and 157,963.80 is: 236,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,171.80 : 330,257.70 = 157,963.80 : x
  2. Step 2: Convert to fraction form
    220,171.80/330,257.70 = 157,963.80/x
  3. Step 3: Cross multiply
    220,171.80x = 330,257.70 × 157,963.80
  4. Step 4: Simplify right side
    220,171.80x = 52,168,761,271.26
  5. Step 5: Solve for x
    x = 52,168,761,271.26/220,171.80
  6. Step 6: Final answer
    x = 236,945.70

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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.