Home / 208,258.38-312,399.68-58,510.35

Finding the Fourth Proportional to 208,258.38, 312,399.68 and 58,510.35

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Solution

The fourth proportional to 208,258.38, 312,399.68 and 58,510.35 is: 87,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,258.38 : 312,399.68 = 58,510.35 : x
  2. Step 2: Convert to fraction form
    208,258.38/312,399.68 = 58,510.35/x
  3. Step 3: Cross multiply
    208,258.38x = 312,399.68 × 58,510.35
  4. Step 4: Simplify right side
    208,258.38x = 18,278,614,616.69
  5. Step 5: Solve for x
    x = 18,278,614,616.69/208,258.38
  6. Step 6: Final answer
    x = 87,768.93

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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.