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Finding the Fourth Proportional to 254,454.37, 351,147.36 and 139,740.43

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Solution

The fourth proportional to 254,454.37, 351,147.36 and 139,740.43 is: 192,841.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,454.37 : 351,147.36 = 139,740.43 : x
  2. Step 2: Convert to fraction form
    254,454.37/351,147.36 = 139,740.43/x
  3. Step 3: Cross multiply
    254,454.37x = 351,147.36 × 139,740.43
  4. Step 4: Simplify right side
    254,454.37x = 49,069,483,079.76
  5. Step 5: Solve for x
    x = 49,069,483,079.76/254,454.37
  6. Step 6: Final answer
    x = 192,841.97

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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.