Home / 276,725.20-415,087.80-99,250.15

Finding the Fourth Proportional to 276,725.20, 415,087.80 and 99,250.15

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Solution

The fourth proportional to 276,725.20, 415,087.80 and 99,250.15 is: 148,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,725.20 : 415,087.80 = 99,250.15 : x
  2. Step 2: Convert to fraction form
    276,725.20/415,087.80 = 99,250.15/x
  3. Step 3: Cross multiply
    276,725.20x = 415,087.80 × 99,250.15
  4. Step 4: Simplify right side
    276,725.20x = 41,197,526,413.17
  5. Step 5: Solve for x
    x = 41,197,526,413.17/276,725.20
  6. Step 6: Final answer
    x = 148,875.23

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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.