Home / 276,822.12-382,015.78-155,965.26

Finding the Fourth Proportional to 276,822.12, 382,015.78 and 155,965.26

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Solution

The fourth proportional to 276,822.12, 382,015.78 and 155,965.26 is: 215,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,822.12 : 382,015.78 = 155,965.26 : x
  2. Step 2: Convert to fraction form
    276,822.12/382,015.78 = 155,965.26/x
  3. Step 3: Cross multiply
    276,822.12x = 382,015.78 × 155,965.26
  4. Step 4: Simplify right side
    276,822.12x = 59,581,190,451.80
  5. Step 5: Solve for x
    x = 59,581,190,451.80/276,822.12
  6. Step 6: Final answer
    x = 215,232.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.