Home / 381,947.81-526,890.31-259,446.49

Finding the Fourth Proportional to 381,947.81, 526,890.31 and 259,446.49

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Solution

The fourth proportional to 381,947.81, 526,890.31 and 259,446.49 is: 357,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,947.81 : 526,890.31 = 259,446.49 : x
  2. Step 2: Convert to fraction form
    381,947.81/526,890.31 = 259,446.49/x
  3. Step 3: Cross multiply
    381,947.81x = 526,890.31 × 259,446.49
  4. Step 4: Simplify right side
    381,947.81x = 136,699,839,578.67
  5. Step 5: Solve for x
    x = 136,699,839,578.67/381,947.81
  6. Step 6: Final answer
    x = 357,901.89

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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.