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Finding the Fourth Proportional to 247,158.68, 341,093.70 and 139,738.64

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Solution

The fourth proportional to 247,158.68, 341,093.70 and 139,738.64 is: 192,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,158.68 : 341,093.70 = 139,738.64 : x
  2. Step 2: Convert to fraction form
    247,158.68/341,093.70 = 139,738.64/x
  3. Step 3: Cross multiply
    247,158.68x = 341,093.70 × 139,738.64
  4. Step 4: Simplify right side
    247,158.68x = 47,663,968,045.10
  5. Step 5: Solve for x
    x = 47,663,968,045.10/247,158.68
  6. Step 6: Final answer
    x = 192,847.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.