Home / 377,836.66-521,418.12-208,072

Finding the Fourth Proportional to 377,836.66, 521,418.12 and 208,072

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Solution

The fourth proportional to 377,836.66, 521,418.12 and 208,072 is: 287,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,836.66 : 521,418.12 = 208,072 : x
  2. Step 2: Convert to fraction form
    377,836.66/521,418.12 = 208,072/x
  3. Step 3: Cross multiply
    377,836.66x = 521,418.12 × 208,072
  4. Step 4: Simplify right side
    377,836.66x = 108,492,511,064.64
  5. Step 5: Solve for x
    x = 108,492,511,064.64/377,836.66
  6. Step 6: Final answer
    x = 287,141.30

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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.