Home / 276,282.41-381,269.16-155,423.80

Finding the Fourth Proportional to 276,282.41, 381,269.16 and 155,423.80

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Solution

The fourth proportional to 276,282.41, 381,269.16 and 155,423.80 is: 214,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,282.41 : 381,269.16 = 155,423.80 : x
  2. Step 2: Convert to fraction form
    276,282.41/381,269.16 = 155,423.80/x
  3. Step 3: Cross multiply
    276,282.41x = 381,269.16 × 155,423.80
  4. Step 4: Simplify right side
    276,282.41x = 59,258,300,001.96
  5. Step 5: Solve for x
    x = 59,258,300,001.96/276,282.41
  6. Step 6: Final answer
    x = 214,484.52

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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.