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Finding the Fourth Proportional to 492,107.30, 679,108.07 and 265,752.78

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Solution

The fourth proportional to 492,107.30, 679,108.07 and 265,752.78 is: 366,738.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,107.30 : 679,108.07 = 265,752.78 : x
  2. Step 2: Convert to fraction form
    492,107.30/679,108.07 = 265,752.78/x
  3. Step 3: Cross multiply
    492,107.30x = 679,108.07 × 265,752.78
  4. Step 4: Simplify right side
    492,107.30x = 180,474,857,522.94
  5. Step 5: Solve for x
    x = 180,474,857,522.94/492,107.30
  6. Step 6: Final answer
    x = 366,738.83

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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.