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Finding the Fourth Proportional to 376,153.89, 519,092.31 and 215,012.39

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Solution

The fourth proportional to 376,153.89, 519,092.31 and 215,012.39 is: 296,717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,153.89 : 519,092.31 = 215,012.39 : x
  2. Step 2: Convert to fraction form
    376,153.89/519,092.31 = 215,012.39/x
  3. Step 3: Cross multiply
    376,153.89x = 519,092.31 × 215,012.39
  4. Step 4: Simplify right side
    376,153.89x = 111,611,278,980.23
  5. Step 5: Solve for x
    x = 111,611,278,980.23/376,153.89
  6. Step 6: Final answer
    x = 296,717.07

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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.