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Finding the Fourth Proportional to 663,442.94, 995,198.44 and 190,132.40

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Solution

The fourth proportional to 663,442.94, 995,198.44 and 190,132.40 is: 285,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,442.94 : 995,198.44 = 190,132.40 : x
  2. Step 2: Convert to fraction form
    663,442.94/995,198.44 = 190,132.40/x
  3. Step 3: Cross multiply
    663,442.94x = 995,198.44 × 190,132.40
  4. Step 4: Simplify right side
    663,442.94x = 189,219,467,873.46
  5. Step 5: Solve for x
    x = 189,219,467,873.46/663,442.94
  6. Step 6: Final answer
    x = 285,208.35

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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.