Home / 208,258.14-312,399.30-58,510.10

Finding the Fourth Proportional to 208,258.14, 312,399.30 and 58,510.10

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Solution

The fourth proportional to 208,258.14, 312,399.30 and 58,510.10 is: 87,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,258.14 : 312,399.30 = 58,510.10 : x
  2. Step 2: Convert to fraction form
    208,258.14/312,399.30 = 58,510.10/x
  3. Step 3: Cross multiply
    208,258.14x = 312,399.30 × 58,510.10
  4. Step 4: Simplify right side
    208,258.14x = 18,278,512,720.93
  5. Step 5: Solve for x
    x = 18,278,512,720.93/208,258.14
  6. Step 6: Final answer
    x = 87,768.54

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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.