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Finding the Fourth Proportional to 228,268.21, 342,401.98 and 91,552.98

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Solution

The fourth proportional to 228,268.21, 342,401.98 and 91,552.98 is: 137,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,268.21 : 342,401.98 = 91,552.98 : x
  2. Step 2: Convert to fraction form
    228,268.21/342,401.98 = 91,552.98/x
  3. Step 3: Cross multiply
    228,268.21x = 342,401.98 × 91,552.98
  4. Step 4: Simplify right side
    228,268.21x = 31,347,921,626.90
  5. Step 5: Solve for x
    x = 31,347,921,626.90/228,268.21
  6. Step 6: Final answer
    x = 137,329.34

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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.