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Finding the Fourth Proportional to 276,045.22, 380,894.91 and 155,169.73

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Solution

The fourth proportional to 276,045.22, 380,894.91 and 155,169.73 is: 214,107.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,045.22 : 380,894.91 = 155,169.73 : x
  2. Step 2: Convert to fraction form
    276,045.22/380,894.91 = 155,169.73/x
  3. Step 3: Cross multiply
    276,045.22x = 380,894.91 × 155,169.73
  4. Step 4: Simplify right side
    276,045.22x = 59,103,360,343.07
  5. Step 5: Solve for x
    x = 59,103,360,343.07/276,045.22
  6. Step 6: Final answer
    x = 214,107.53

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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.