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Finding the Fourth Proportional to 377,958, 521,582.04 and 208,191.72

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Solution

The fourth proportional to 377,958, 521,582.04 and 208,191.72 is: 287,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,958 : 521,582.04 = 208,191.72 : x
  2. Step 2: Convert to fraction form
    377,958/521,582.04 = 208,191.72/x
  3. Step 3: Cross multiply
    377,958x = 521,582.04 × 208,191.72
  4. Step 4: Simplify right side
    377,958x = 108,589,062,028.71
  5. Step 5: Solve for x
    x = 108,589,062,028.71/377,958
  6. Step 6: Final answer
    x = 287,304.57

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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.