Home / 208,140.87-312,213.12-50,369.46

Finding the Fourth Proportional to 208,140.87, 312,213.12 and 50,369.46

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Solution

The fourth proportional to 208,140.87, 312,213.12 and 50,369.46 is: 75,554.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,140.87 : 312,213.12 = 50,369.46 : x
  2. Step 2: Convert to fraction form
    208,140.87/312,213.12 = 50,369.46/x
  3. Step 3: Cross multiply
    208,140.87x = 312,213.12 × 50,369.46
  4. Step 4: Simplify right side
    208,140.87x = 15,726,006,259.32
  5. Step 5: Solve for x
    x = 15,726,006,259.32/208,140.87
  6. Step 6: Final answer
    x = 75,554.63

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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.