Home / 377,907.05-521,487.79-208,141.17

Finding the Fourth Proportional to 377,907.05, 521,487.79 and 208,141.17

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Solution

The fourth proportional to 377,907.05, 521,487.79 and 208,141.17 is: 287,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,907.05 : 521,487.79 = 208,141.17 : x
  2. Step 2: Convert to fraction form
    377,907.05/521,487.79 = 208,141.17/x
  3. Step 3: Cross multiply
    377,907.05x = 521,487.79 × 208,141.17
  4. Step 4: Simplify right side
    377,907.05x = 108,543,077,710.61
  5. Step 5: Solve for x
    x = 108,543,077,710.61/377,907.05
  6. Step 6: Final answer
    x = 287,221.63

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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.