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Finding the Fourth Proportional to 275,221.80, 379,841.22 and 162,055.08

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Solution

The fourth proportional to 275,221.80, 379,841.22 and 162,055.08 is: 223,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,221.80 : 379,841.22 = 162,055.08 : x
  2. Step 2: Convert to fraction form
    275,221.80/379,841.22 = 162,055.08/x
  3. Step 3: Cross multiply
    275,221.80x = 379,841.22 × 162,055.08
  4. Step 4: Simplify right side
    275,221.80x = 61,555,199,294.40
  5. Step 5: Solve for x
    x = 61,555,199,294.40/275,221.80
  6. Step 6: Final answer
    x = 223,656.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.