Home / 208,049.90-312,074.85-83,480.30

Finding the Fourth Proportional to 208,049.90, 312,074.85 and 83,480.30

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Solution

The fourth proportional to 208,049.90, 312,074.85 and 83,480.30 is: 125,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,049.90 : 312,074.85 = 83,480.30 : x
  2. Step 2: Convert to fraction form
    208,049.90/312,074.85 = 83,480.30/x
  3. Step 3: Cross multiply
    208,049.90x = 312,074.85 × 83,480.30
  4. Step 4: Simplify right side
    208,049.90x = 26,052,102,100.46
  5. Step 5: Solve for x
    x = 26,052,102,100.46/208,049.90
  6. Step 6: Final answer
    x = 125,220.45

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1.5x scale

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.