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Finding the Fourth Proportional to 511,584.32, 767,143.20 and 245,470.16

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Solution

The fourth proportional to 511,584.32, 767,143.20 and 245,470.16 is: 368,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,584.32 : 767,143.20 = 245,470.16 : x
  2. Step 2: Convert to fraction form
    511,584.32/767,143.20 = 245,470.16/x
  3. Step 3: Cross multiply
    511,584.32x = 767,143.20 × 245,470.16
  4. Step 4: Simplify right side
    511,584.32x = 188,310,764,046.91
  5. Step 5: Solve for x
    x = 188,310,764,046.91/511,584.32
  6. Step 6: Final answer
    x = 368,093.31

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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.