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Finding the Fourth Proportional to 217,486.80, 325,841.40 and 177,829.20

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Solution

The fourth proportional to 217,486.80, 325,841.40 and 177,829.20 is: 266,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,486.80 : 325,841.40 = 177,829.20 : x
  2. Step 2: Convert to fraction form
    217,486.80/325,841.40 = 177,829.20/x
  3. Step 3: Cross multiply
    217,486.80x = 325,841.40 × 177,829.20
  4. Step 4: Simplify right side
    217,486.80x = 57,944,115,488.88
  5. Step 5: Solve for x
    x = 57,944,115,488.88/217,486.80
  6. Step 6: Final answer
    x = 266,425.90

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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.