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Finding the Fourth Proportional to 254,597.93, 351,350.72 and 139,878.05

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Solution

The fourth proportional to 254,597.93, 351,350.72 and 139,878.05 is: 193,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,597.93 : 351,350.72 = 139,878.05 : x
  2. Step 2: Convert to fraction form
    254,597.93/351,350.72 = 139,878.05/x
  3. Step 3: Cross multiply
    254,597.93x = 351,350.72 × 139,878.05
  4. Step 4: Simplify right side
    254,597.93x = 49,146,251,123.55
  5. Step 5: Solve for x
    x = 49,146,251,123.55/254,597.93
  6. Step 6: Final answer
    x = 193,034.77

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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.