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Finding the Fourth Proportional to 377,808, 521,375.04 and 208,041.72

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Solution

The fourth proportional to 377,808, 521,375.04 and 208,041.72 is: 287,097.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,808 : 521,375.04 = 208,041.72 : x
  2. Step 2: Convert to fraction form
    377,808/521,375.04 = 208,041.72/x
  3. Step 3: Cross multiply
    377,808x = 521,375.04 × 208,041.72
  4. Step 4: Simplify right side
    377,808x = 108,467,760,086.67
  5. Step 5: Solve for x
    x = 108,467,760,086.67/377,808
  6. Step 6: Final answer
    x = 287,097.57

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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.