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Finding the Fourth Proportional to 340,838.22, 511,260.57 and 91,520.22

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Solution

The fourth proportional to 340,838.22, 511,260.57 and 91,520.22 is: 137,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,838.22 : 511,260.57 = 91,520.22 : x
  2. Step 2: Convert to fraction form
    340,838.22/511,260.57 = 91,520.22/x
  3. Step 3: Cross multiply
    340,838.22x = 511,260.57 × 91,520.22
  4. Step 4: Simplify right side
    340,838.22x = 46,790,679,843.73
  5. Step 5: Solve for x
    x = 46,790,679,843.73/340,838.22
  6. Step 6: Final answer
    x = 137,281.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.