Home / 208,257.38-312,398.18-58,509.35

Finding the Fourth Proportional to 208,257.38, 312,398.18 and 58,509.35

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Solution

The fourth proportional to 208,257.38, 312,398.18 and 58,509.35 is: 87,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,257.38 : 312,398.18 = 58,509.35 : x
  2. Step 2: Convert to fraction form
    208,257.38/312,398.18 = 58,509.35/x
  3. Step 3: Cross multiply
    208,257.38x = 312,398.18 × 58,509.35
  4. Step 4: Simplify right side
    208,257.38x = 18,278,212,598.45
  5. Step 5: Solve for x
    x = 18,278,212,598.45/208,257.38
  6. Step 6: Final answer
    x = 87,767.42

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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.