Home / 377,911-521,517.18-208,145.13

Finding the Fourth Proportional to 377,911, 521,517.18 and 208,145.13

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Solution

The fourth proportional to 377,911, 521,517.18 and 208,145.13 is: 287,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,911 : 521,517.18 = 208,145.13 : x
  2. Step 2: Convert to fraction form
    377,911/521,517.18 = 208,145.13/x
  3. Step 3: Cross multiply
    377,911x = 521,517.18 × 208,145.13
  4. Step 4: Simplify right side
    377,911x = 108,551,261,228.33
  5. Step 5: Solve for x
    x = 108,551,261,228.33/377,911
  6. Step 6: Final answer
    x = 287,240.28

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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.