Home / 276,450.39-381,513.81-155,599.50

Finding the Fourth Proportional to 276,450.39, 381,513.81 and 155,599.50

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Solution

The fourth proportional to 276,450.39, 381,513.81 and 155,599.50 is: 214,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,450.39 : 381,513.81 = 155,599.50 : x
  2. Step 2: Convert to fraction form
    276,450.39/381,513.81 = 155,599.50/x
  3. Step 3: Cross multiply
    276,450.39x = 381,513.81 × 155,599.50
  4. Step 4: Simplify right side
    276,450.39x = 59,363,358,079.10
  5. Step 5: Solve for x
    x = 59,363,358,079.10/276,450.39
  6. Step 6: Final answer
    x = 214,734.22

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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.