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Finding the Fourth Proportional to 376,300.40, 519,202.82 and 212,960.66

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Solution

The fourth proportional to 376,300.40, 519,202.82 and 212,960.66 is: 293,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,300.40 : 519,202.82 = 212,960.66 : x
  2. Step 2: Convert to fraction form
    376,300.40/519,202.82 = 212,960.66/x
  3. Step 3: Cross multiply
    376,300.40x = 519,202.82 × 212,960.66
  4. Step 4: Simplify right side
    376,300.40x = 110,569,775,221.06
  5. Step 5: Solve for x
    x = 110,569,775,221.06/376,300.40
  6. Step 6: Final answer
    x = 293,833.80

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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.