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Finding the Fourth Proportional to 254,362.86, 351,025.14 and 139,652.15

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Solution

The fourth proportional to 254,362.86, 351,025.14 and 139,652.15 is: 192,722.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,362.86 : 351,025.14 = 139,652.15 : x
  2. Step 2: Convert to fraction form
    254,362.86/351,025.14 = 139,652.15/x
  3. Step 3: Cross multiply
    254,362.86x = 351,025.14 × 139,652.15
  4. Step 4: Simplify right side
    254,362.86x = 49,021,413,749.93
  5. Step 5: Solve for x
    x = 49,021,413,749.93/254,362.86
  6. Step 6: Final answer
    x = 192,722.37

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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.