Home / 377,930.27-521,543.68-208,164.40

Finding the Fourth Proportional to 377,930.27, 521,543.68 and 208,164.40

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Solution

The fourth proportional to 377,930.27, 521,543.68 and 208,164.40 is: 287,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,930.27 : 521,543.68 = 208,164.40 : x
  2. Step 2: Convert to fraction form
    377,930.27/521,543.68 = 208,164.40/x
  3. Step 3: Cross multiply
    377,930.27x = 521,543.68 × 208,164.40
  4. Step 4: Simplify right side
    377,930.27x = 108,566,825,396.72
  5. Step 5: Solve for x
    x = 108,566,825,396.72/377,930.27
  6. Step 6: Final answer
    x = 287,266.81

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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.