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Finding the Fourth Proportional to 247,310.88, 341,296.74 and 139,878.81

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Solution

The fourth proportional to 247,310.88, 341,296.74 and 139,878.81 is: 193,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,310.88 : 341,296.74 = 139,878.81 : x
  2. Step 2: Convert to fraction form
    247,310.88/341,296.74 = 139,878.81/x
  3. Step 3: Cross multiply
    247,310.88x = 341,296.74 × 139,878.81
  4. Step 4: Simplify right side
    247,310.88x = 47,740,181,848.08
  5. Step 5: Solve for x
    x = 47,740,181,848.08/247,310.88
  6. Step 6: Final answer
    x = 193,037.13

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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.