Home / 276,746.68-381,868.24-155,880.32

Finding the Fourth Proportional to 276,746.68, 381,868.24 and 155,880.32

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Solution

The fourth proportional to 276,746.68, 381,868.24 and 155,880.32 is: 215,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,746.68 : 381,868.24 = 155,880.32 : x
  2. Step 2: Convert to fraction form
    276,746.68/381,868.24 = 155,880.32/x
  3. Step 3: Cross multiply
    276,746.68x = 381,868.24 × 155,880.32
  4. Step 4: Simplify right side
    276,746.68x = 59,525,743,449.04
  5. Step 5: Solve for x
    x = 59,525,743,449.04/276,746.68
  6. Step 6: Final answer
    x = 215,091.08

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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.