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Finding the Fourth Proportional to 304,909.93, 420,770.10 and 168,943.38

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Solution

The fourth proportional to 304,909.93, 420,770.10 and 168,943.38 is: 233,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,909.93 : 420,770.10 = 168,943.38 : x
  2. Step 2: Convert to fraction form
    304,909.93/420,770.10 = 168,943.38/x
  3. Step 3: Cross multiply
    304,909.93x = 420,770.10 × 168,943.38
  4. Step 4: Simplify right side
    304,909.93x = 71,086,322,896.94
  5. Step 5: Solve for x
    x = 71,086,322,896.94/304,909.93
  6. Step 6: Final answer
    x = 233,138.76

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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.