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Finding the Fourth Proportional to 376,606.50, 519,590.54 and 213,240.71

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Solution

The fourth proportional to 376,606.50, 519,590.54 and 213,240.71 is: 294,200.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,606.50 : 519,590.54 = 213,240.71 : x
  2. Step 2: Convert to fraction form
    376,606.50/519,590.54 = 213,240.71/x
  3. Step 3: Cross multiply
    376,606.50x = 519,590.54 × 213,240.71
  4. Step 4: Simplify right side
    376,606.50x = 110,797,851,994.73
  5. Step 5: Solve for x
    x = 110,797,851,994.73/376,606.50
  6. Step 6: Final answer
    x = 294,200.58

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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.