Home / 377,979.03-521,617.32-208,213.29

Finding the Fourth Proportional to 377,979.03, 521,617.32 and 208,213.29

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Solution

The fourth proportional to 377,979.03, 521,617.32 and 208,213.29 is: 287,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,979.03 : 521,617.32 = 208,213.29 : x
  2. Step 2: Convert to fraction form
    377,979.03/521,617.32 = 208,213.29/x
  3. Step 3: Cross multiply
    377,979.03x = 521,617.32 × 208,213.29
  4. Step 4: Simplify right side
    377,979.03x = 108,607,658,318.18
  5. Step 5: Solve for x
    x = 108,607,658,318.18/377,979.03
  6. Step 6: Final answer
    x = 287,337.79

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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.