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Finding the Fourth Proportional to 663,696.40, 995,933.40 and 243,014.80

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Solution

The fourth proportional to 663,696.40, 995,933.40 and 243,014.80 is: 364,664.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,696.40 : 995,933.40 = 243,014.80 : x
  2. Step 2: Convert to fraction form
    663,696.40/995,933.40 = 243,014.80/x
  3. Step 3: Cross multiply
    663,696.40x = 995,933.40 × 243,014.80
  4. Step 4: Simplify right side
    663,696.40x = 242,026,556,014.32
  5. Step 5: Solve for x
    x = 242,026,556,014.32/663,696.40
  6. Step 6: Final answer
    x = 364,664.56

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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.