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Finding the Fourth Proportional to 304,426.39, 419,830.81 and 261,392.38

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Solution

The fourth proportional to 304,426.39, 419,830.81 and 261,392.38 is: 360,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,426.39 : 419,830.81 = 261,392.38 : x
  2. Step 2: Convert to fraction form
    304,426.39/419,830.81 = 261,392.38/x
  3. Step 3: Cross multiply
    304,426.39x = 419,830.81 × 261,392.38
  4. Step 4: Simplify right side
    304,426.39x = 109,740,571,217.11
  5. Step 5: Solve for x
    x = 109,740,571,217.11/304,426.39
  6. Step 6: Final answer
    x = 360,483.11

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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.