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Finding the Fourth Proportional to 276,322.25, 381,324.71 and 157,090.25

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Solution

The fourth proportional to 276,322.25, 381,324.71 and 157,090.25 is: 216,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,322.25 : 381,324.71 = 157,090.25 : x
  2. Step 2: Convert to fraction form
    276,322.25/381,324.71 = 157,090.25/x
  3. Step 3: Cross multiply
    276,322.25x = 381,324.71 × 157,090.25
  4. Step 4: Simplify right side
    276,322.25x = 59,902,394,025.08
  5. Step 5: Solve for x
    x = 59,902,394,025.08/276,322.25
  6. Step 6: Final answer
    x = 216,784.55

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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.