Home / 377,403.66-520,805.18-205,317.23

Finding the Fourth Proportional to 377,403.66, 520,805.18 and 205,317.23

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Solution

The fourth proportional to 377,403.66, 520,805.18 and 205,317.23 is: 283,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,403.66 : 520,805.18 = 205,317.23 : x
  2. Step 2: Convert to fraction form
    377,403.66/520,805.18 = 205,317.23/x
  3. Step 3: Cross multiply
    377,403.66x = 520,805.18 × 205,317.23
  4. Step 4: Simplify right side
    377,403.66x = 106,930,273,296.64
  5. Step 5: Solve for x
    x = 106,930,273,296.64/377,403.66
  6. Step 6: Final answer
    x = 283,331.31

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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.