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Finding the Fourth Proportional to 276,807.63, 381,994.53 and 149,483.22

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Solution

The fourth proportional to 276,807.63, 381,994.53 and 149,483.22 is: 206,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,807.63 : 381,994.53 = 149,483.22 : x
  2. Step 2: Convert to fraction form
    276,807.63/381,994.53 = 149,483.22/x
  3. Step 3: Cross multiply
    276,807.63x = 381,994.53 × 149,483.22
  4. Step 4: Simplify right side
    276,807.63x = 57,101,771,806.22
  5. Step 5: Solve for x
    x = 57,101,771,806.22/276,807.63
  6. Step 6: Final answer
    x = 206,286.84

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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.