Home / 377,930.36-521,543.85-208,164.49

Finding the Fourth Proportional to 377,930.36, 521,543.85 and 208,164.49

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Solution

The fourth proportional to 377,930.36, 521,543.85 and 208,164.49 is: 287,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,930.36 : 521,543.85 = 208,164.49 : x
  2. Step 2: Convert to fraction form
    377,930.36/521,543.85 = 208,164.49/x
  3. Step 3: Cross multiply
    377,930.36x = 521,543.85 × 208,164.49
  4. Step 4: Simplify right side
    377,930.36x = 108,566,906,940.17
  5. Step 5: Solve for x
    x = 108,566,906,940.17/377,930.36
  6. Step 6: Final answer
    x = 287,266.96

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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.