Home / 276,214.44-381,172.15-155,355.67

Finding the Fourth Proportional to 276,214.44, 381,172.15 and 155,355.67

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Solution

The fourth proportional to 276,214.44, 381,172.15 and 155,355.67 is: 214,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,214.44 : 381,172.15 = 155,355.67 : x
  2. Step 2: Convert to fraction form
    276,214.44/381,172.15 = 155,355.67/x
  3. Step 3: Cross multiply
    276,214.44x = 381,172.15 × 155,355.67
  4. Step 4: Simplify right side
    276,214.44x = 59,217,254,748.59
  5. Step 5: Solve for x
    x = 59,217,254,748.59/276,214.44
  6. Step 6: Final answer
    x = 214,388.70

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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.