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Finding the Fourth Proportional to 663,682.95, 995,247.63 and 208,156.83

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Solution

The fourth proportional to 663,682.95, 995,247.63 and 208,156.83 is: 312,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,682.95 : 995,247.63 = 208,156.83 : x
  2. Step 2: Convert to fraction form
    663,682.95/995,247.63 = 208,156.83/x
  3. Step 3: Cross multiply
    663,682.95x = 995,247.63 × 208,156.83
  4. Step 4: Simplify right side
    663,682.95x = 207,167,587,993.63
  5. Step 5: Solve for x
    x = 207,167,587,993.63/663,682.95
  6. Step 6: Final answer
    x = 312,148.42

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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.