Home / 208,257.62-312,398.55-58,509.59

Finding the Fourth Proportional to 208,257.62, 312,398.55 and 58,509.59

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Solution

The fourth proportional to 208,257.62, 312,398.55 and 58,509.59 is: 87,767.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,257.62 : 312,398.55 = 58,509.59 : x
  2. Step 2: Convert to fraction form
    208,257.62/312,398.55 = 58,509.59/x
  3. Step 3: Cross multiply
    208,257.62x = 312,398.55 × 58,509.59
  4. Step 4: Simplify right side
    208,257.62x = 18,278,311,107.79
  5. Step 5: Solve for x
    x = 18,278,311,107.79/208,257.62
  6. Step 6: Final answer
    x = 87,767.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.