Home / 274,039.28-378,222.33-159,353.40

Finding the Fourth Proportional to 274,039.28, 378,222.33 and 159,353.40

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Solution

The fourth proportional to 274,039.28, 378,222.33 and 159,353.40 is: 219,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,039.28 : 378,222.33 = 159,353.40 : x
  2. Step 2: Convert to fraction form
    274,039.28/378,222.33 = 159,353.40/x
  3. Step 3: Cross multiply
    274,039.28x = 378,222.33 × 159,353.40
  4. Step 4: Simplify right side
    274,039.28x = 60,271,014,241.42
  5. Step 5: Solve for x
    x = 60,271,014,241.42/274,039.28
  6. Step 6: Final answer
    x = 219,935.68

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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.