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Finding the Fourth Proportional to 208,074.40, 312,112.40 and 50,302.60

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Solution

The fourth proportional to 208,074.40, 312,112.40 and 50,302.60 is: 75,454.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,074.40 : 312,112.40 = 50,302.60 : x
  2. Step 2: Convert to fraction form
    208,074.40/312,112.40 = 50,302.60/x
  3. Step 3: Cross multiply
    208,074.40x = 312,112.40 × 50,302.60
  4. Step 4: Simplify right side
    208,074.40x = 15,700,065,212.24
  5. Step 5: Solve for x
    x = 15,700,065,212.24/208,074.40
  6. Step 6: Final answer
    x = 75,454.09

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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.