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Finding the Fourth Proportional to 377,955.29, 521,578.33 and 208,189.42

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Solution

The fourth proportional to 377,955.29, 521,578.33 and 208,189.42 is: 287,301.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,955.29 : 521,578.33 = 208,189.42 : x
  2. Step 2: Convert to fraction form
    377,955.29/521,578.33 = 208,189.42/x
  3. Step 3: Cross multiply
    377,955.29x = 521,578.33 × 208,189.42
  4. Step 4: Simplify right side
    377,955.29x = 108,587,088,182.85
  5. Step 5: Solve for x
    x = 108,587,088,182.85/377,955.29
  6. Step 6: Final answer
    x = 287,301.41

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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.