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Finding the Fourth Proportional to 217,404.40, 325,703.40 and 123,631.60

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Solution

The fourth proportional to 217,404.40, 325,703.40 and 123,631.60 is: 185,218.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,404.40 : 325,703.40 = 123,631.60 : x
  2. Step 2: Convert to fraction form
    217,404.40/325,703.40 = 123,631.60/x
  3. Step 3: Cross multiply
    217,404.40x = 325,703.40 × 123,631.60
  4. Step 4: Simplify right side
    217,404.40x = 40,267,232,467.44
  5. Step 5: Solve for x
    x = 40,267,232,467.44/217,404.40
  6. Step 6: Final answer
    x = 185,218.11

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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.