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Finding the Fourth Proportional to 663,238.40, 995,246.40 and 242,556.80

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Solution

The fourth proportional to 663,238.40, 995,246.40 and 242,556.80 is: 363,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,238.40 : 995,246.40 = 242,556.80 : x
  2. Step 2: Convert to fraction form
    663,238.40/995,246.40 = 242,556.80/x
  3. Step 3: Cross multiply
    663,238.40x = 995,246.40 × 242,556.80
  4. Step 4: Simplify right side
    663,238.40x = 241,403,781,995.52
  5. Step 5: Solve for x
    x = 241,403,781,995.52/663,238.40
  6. Step 6: Final answer
    x = 363,977.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.