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Finding the Fourth Proportional to 376,160.15, 519,101.01 and 215,018.69

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Solution

The fourth proportional to 376,160.15, 519,101.01 and 215,018.69 is: 296,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,160.15 : 519,101.01 = 215,018.69 : x
  2. Step 2: Convert to fraction form
    376,160.15/519,101.01 = 215,018.69/x
  3. Step 3: Cross multiply
    376,160.15x = 519,101.01 × 215,018.69
  4. Step 4: Simplify right side
    376,160.15x = 111,616,415,477.28
  5. Step 5: Solve for x
    x = 111,616,415,477.28/376,160.15
  6. Step 6: Final answer
    x = 296,725.79

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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.