Home / 377,928.11-521,540.75-208,162.23

Finding the Fourth Proportional to 377,928.11, 521,540.75 and 208,162.23

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Solution

The fourth proportional to 377,928.11, 521,540.75 and 208,162.23 is: 287,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,928.11 : 521,540.75 = 208,162.23 : x
  2. Step 2: Convert to fraction form
    377,928.11/521,540.75 = 208,162.23/x
  3. Step 3: Cross multiply
    377,928.11x = 521,540.75 × 208,162.23
  4. Step 4: Simplify right side
    377,928.11x = 108,565,085,555.87
  5. Step 5: Solve for x
    x = 108,565,085,555.87/377,928.11
  6. Step 6: Final answer
    x = 287,263.86

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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.