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Finding the Fourth Proportional to 247,308.87, 341,293.98 and 139,876.81

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Solution

The fourth proportional to 247,308.87, 341,293.98 and 139,876.81 is: 193,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,308.87 : 341,293.98 = 139,876.81 : x
  2. Step 2: Convert to fraction form
    247,308.87/341,293.98 = 139,876.81/x
  3. Step 3: Cross multiply
    247,308.87x = 341,293.98 × 139,876.81
  4. Step 4: Simplify right side
    247,308.87x = 47,739,113,194.60
  5. Step 5: Solve for x
    x = 47,739,113,194.60/247,308.87
  6. Step 6: Final answer
    x = 193,034.38

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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.