Home / 276,312.92-381,284.68-155,451.60

Finding the Fourth Proportional to 276,312.92, 381,284.68 and 155,451.60

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Solution

The fourth proportional to 276,312.92, 381,284.68 and 155,451.60 is: 214,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,312.92 : 381,284.68 = 155,451.60 : x
  2. Step 2: Convert to fraction form
    276,312.92/381,284.68 = 155,451.60/x
  3. Step 3: Cross multiply
    276,312.92x = 381,284.68 × 155,451.60
  4. Step 4: Simplify right side
    276,312.92x = 59,271,313,561.49
  5. Step 5: Solve for x
    x = 59,271,313,561.49/276,312.92
  6. Step 6: Final answer
    x = 214,507.93

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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.