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Finding the Fourth Proportional to 331,026.14, 455,945.90 and 254,398.62

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Solution

The fourth proportional to 331,026.14, 455,945.90 and 254,398.62 is: 350,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,026.14 : 455,945.90 = 254,398.62 : x
  2. Step 2: Convert to fraction form
    331,026.14/455,945.90 = 254,398.62/x
  3. Step 3: Cross multiply
    331,026.14x = 455,945.90 × 254,398.62
  4. Step 4: Simplify right side
    331,026.14x = 115,992,007,754.66
  5. Step 5: Solve for x
    x = 115,992,007,754.66/331,026.14
  6. Step 6: Final answer
    x = 350,401.35

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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.