Home / 208,580.16-312,867-50,808.36

Finding the Fourth Proportional to 208,580.16, 312,867 and 50,808.36

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Solution

The fourth proportional to 208,580.16, 312,867 and 50,808.36 is: 76,211.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,580.16 : 312,867 = 50,808.36 : x
  2. Step 2: Convert to fraction form
    208,580.16/312,867 = 50,808.36/x
  3. Step 3: Cross multiply
    208,580.16x = 312,867 × 50,808.36
  4. Step 4: Simplify right side
    208,580.16x = 15,896,259,168.12
  5. Step 5: Solve for x
    x = 15,896,259,168.12/208,580.16
  6. Step 6: Final answer
    x = 76,211.75

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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.