Home / 377,927.85-521,540.40-208,161.98

Finding the Fourth Proportional to 377,927.85, 521,540.40 and 208,161.98

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Solution

The fourth proportional to 377,927.85, 521,540.40 and 208,161.98 is: 287,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,927.85 : 521,540.40 = 208,161.98 : x
  2. Step 2: Convert to fraction form
    377,927.85/521,540.40 = 208,161.98/x
  3. Step 3: Cross multiply
    377,927.85x = 521,540.40 × 208,161.98
  4. Step 4: Simplify right side
    377,927.85x = 108,564,882,313.99
  5. Step 5: Solve for x
    x = 108,564,882,313.99/377,927.85
  6. Step 6: Final answer
    x = 287,263.51

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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.