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Finding the Fourth Proportional to 220,503.26, 330,921.35 and 161,491.93

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Solution

The fourth proportional to 220,503.26, 330,921.35 and 161,491.93 is: 242,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,503.26 : 330,921.35 = 161,491.93 : x
  2. Step 2: Convert to fraction form
    220,503.26/330,921.35 = 161,491.93/x
  3. Step 3: Cross multiply
    220,503.26x = 330,921.35 × 161,491.93
  4. Step 4: Simplify right side
    220,503.26x = 53,441,126,460.54
  5. Step 5: Solve for x
    x = 53,441,126,460.54/220,503.26
  6. Step 6: Final answer
    x = 242,359.80

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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.