Home / 263,962-396,009.08-76,973.52

Finding the Fourth Proportional to 263,962, 396,009.08 and 76,973.52

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Solution

The fourth proportional to 263,962, 396,009.08 and 76,973.52 is: 115,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,962 : 396,009.08 = 76,973.52 : x
  2. Step 2: Convert to fraction form
    263,962/396,009.08 = 76,973.52/x
  3. Step 3: Cross multiply
    263,962x = 396,009.08 × 76,973.52
  4. Step 4: Simplify right side
    263,962x = 30,482,212,839.56
  5. Step 5: Solve for x
    x = 30,482,212,839.56/263,962
  6. Step 6: Final answer
    x = 115,479.55

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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.