Home / 276,299.13-381,277.22-155,445.51

Finding the Fourth Proportional to 276,299.13, 381,277.22 and 155,445.51

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Solution

The fourth proportional to 276,299.13, 381,277.22 and 155,445.51 is: 214,506.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,299.13 : 381,277.22 = 155,445.51 : x
  2. Step 2: Convert to fraction form
    276,299.13/381,277.22 = 155,445.51/x
  3. Step 3: Cross multiply
    276,299.13x = 381,277.22 × 155,445.51
  4. Step 4: Simplify right side
    276,299.13x = 59,267,831,137.05
  5. Step 5: Solve for x
    x = 59,267,831,137.05/276,299.13
  6. Step 6: Final answer
    x = 214,506.04

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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.