Home / 276,165.93-381,105.34-155,307.18

Finding the Fourth Proportional to 276,165.93, 381,105.34 and 155,307.18

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Solution

The fourth proportional to 276,165.93, 381,105.34 and 155,307.18 is: 214,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,165.93 : 381,105.34 = 155,307.18 : x
  2. Step 2: Convert to fraction form
    276,165.93/381,105.34 = 155,307.18/x
  3. Step 3: Cross multiply
    276,165.93x = 381,105.34 × 155,307.18
  4. Step 4: Simplify right side
    276,165.93x = 59,188,395,638.34
  5. Step 5: Solve for x
    x = 59,188,395,638.34/276,165.93
  6. Step 6: Final answer
    x = 214,321.86

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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.