Home / 263,712.73-395,580-76,724.23

Finding the Fourth Proportional to 263,712.73, 395,580 and 76,724.23

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Solution

The fourth proportional to 263,712.73, 395,580 and 76,724.23 is: 115,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,712.73 : 395,580 = 76,724.23 : x
  2. Step 2: Convert to fraction form
    263,712.73/395,580 = 76,724.23/x
  3. Step 3: Cross multiply
    263,712.73x = 395,580 × 76,724.23
  4. Step 4: Simplify right side
    263,712.73x = 30,350,570,903.40
  5. Step 5: Solve for x
    x = 30,350,570,903.40/263,712.73
  6. Step 6: Final answer
    x = 115,089.52

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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.