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Finding the Fourth Proportional to 304,019.71, 419,528.96 and 168,045.55

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Solution

The fourth proportional to 304,019.71, 419,528.96 and 168,045.55 is: 231,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,019.71 : 419,528.96 = 168,045.55 : x
  2. Step 2: Convert to fraction form
    304,019.71/419,528.96 = 168,045.55/x
  3. Step 3: Cross multiply
    304,019.71x = 419,528.96 × 168,045.55
  4. Step 4: Simplify right side
    304,019.71x = 70,499,974,982.31
  5. Step 5: Solve for x
    x = 70,499,974,982.31/304,019.71
  6. Step 6: Final answer
    x = 231,892.78

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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.