Home / 377,928.21-521,540.88-208,162.34

Finding the Fourth Proportional to 377,928.21, 521,540.88 and 208,162.34

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Solution

The fourth proportional to 377,928.21, 521,540.88 and 208,162.34 is: 287,263.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,928.21 : 521,540.88 = 208,162.34 : x
  2. Step 2: Convert to fraction form
    377,928.21/521,540.88 = 208,162.34/x
  3. Step 3: Cross multiply
    377,928.21x = 521,540.88 × 208,162.34
  4. Step 4: Simplify right side
    377,928.21x = 108,565,167,378.76
  5. Step 5: Solve for x
    x = 108,565,167,378.76/377,928.21
  6. Step 6: Final answer
    x = 287,263.99

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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.