Home / 276,282.63-381,269.49-155,424.03

Finding the Fourth Proportional to 276,282.63, 381,269.49 and 155,424.03

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Solution

The fourth proportional to 276,282.63, 381,269.49 and 155,424.03 is: 214,484.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,282.63 : 381,269.49 = 155,424.03 : x
  2. Step 2: Convert to fraction form
    276,282.63/381,269.49 = 155,424.03/x
  3. Step 3: Cross multiply
    276,282.63x = 381,269.49 × 155,424.03
  4. Step 4: Simplify right side
    276,282.63x = 59,258,440,651.84
  5. Step 5: Solve for x
    x = 59,258,440,651.84/276,282.63
  6. Step 6: Final answer
    x = 214,484.86

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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.