Home / 377,811.88-521,361.68-208,014.28

Finding the Fourth Proportional to 377,811.88, 521,361.68 and 208,014.28

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Solution

The fourth proportional to 377,811.88, 521,361.68 and 208,014.28 is: 287,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,811.88 : 521,361.68 = 208,014.28 : x
  2. Step 2: Convert to fraction form
    377,811.88/521,361.68 = 208,014.28/x
  3. Step 3: Cross multiply
    377,811.88x = 521,361.68 × 208,014.28
  4. Step 4: Simplify right side
    377,811.88x = 108,450,674,484.79
  5. Step 5: Solve for x
    x = 108,450,674,484.79/377,811.88
  6. Step 6: Final answer
    x = 287,049.40

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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.