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Finding the Fourth Proportional to 203,666.54, 305,401.17 and 119,454.28

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Solution

The fourth proportional to 203,666.54, 305,401.17 and 119,454.28 is: 179,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,666.54 : 305,401.17 = 119,454.28 : x
  2. Step 2: Convert to fraction form
    203,666.54/305,401.17 = 119,454.28/x
  3. Step 3: Cross multiply
    203,666.54x = 305,401.17 × 119,454.28
  4. Step 4: Simplify right side
    203,666.54x = 36,481,476,873.51
  5. Step 5: Solve for x
    x = 36,481,476,873.51/203,666.54
  6. Step 6: Final answer
    x = 179,123.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.