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Finding the Fourth Proportional to 290,059.72, 435,135.66 and 123,849.16

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Solution

The fourth proportional to 290,059.72, 435,135.66 and 123,849.16 is: 185,793.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,059.72 : 435,135.66 = 123,849.16 : x
  2. Step 2: Convert to fraction form
    290,059.72/435,135.66 = 123,849.16/x
  3. Step 3: Cross multiply
    290,059.72x = 435,135.66 × 123,849.16
  4. Step 4: Simplify right side
    290,059.72x = 53,891,185,977.05
  5. Step 5: Solve for x
    x = 53,891,185,977.05/290,059.72
  6. Step 6: Final answer
    x = 185,793.42

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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.