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Finding the Fourth Proportional to 368,645.58, 508,887.77 and 247,856.76

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Solution

The fourth proportional to 368,645.58, 508,887.77 and 247,856.76 is: 342,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,645.58 : 508,887.77 = 247,856.76 : x
  2. Step 2: Convert to fraction form
    368,645.58/508,887.77 = 247,856.76/x
  3. Step 3: Cross multiply
    368,645.58x = 508,887.77 × 247,856.76
  4. Step 4: Simplify right side
    368,645.58x = 126,131,272,636.54
  5. Step 5: Solve for x
    x = 126,131,272,636.54/368,645.58
  6. Step 6: Final answer
    x = 342,147.80

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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.