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Finding the Fourth Proportional to 304,797.90, 421,423.38 and 266,963.34

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Solution

The fourth proportional to 304,797.90, 421,423.38 and 266,963.34 is: 369,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,797.90 : 421,423.38 = 266,963.34 : x
  2. Step 2: Convert to fraction form
    304,797.90/421,423.38 = 266,963.34/x
  3. Step 3: Cross multiply
    304,797.90x = 421,423.38 × 266,963.34
  4. Step 4: Simplify right side
    304,797.90x = 112,504,593,078.89
  5. Step 5: Solve for x
    x = 112,504,593,078.89/304,797.90
  6. Step 6: Final answer
    x = 369,112.10

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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.