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Finding the Fourth Proportional to 663,246.96, 995,064.08 and 213,957.84

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Solution

The fourth proportional to 663,246.96, 995,064.08 and 213,957.84 is: 320,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,246.96 : 995,064.08 = 213,957.84 : x
  2. Step 2: Convert to fraction form
    663,246.96/995,064.08 = 213,957.84/x
  3. Step 3: Cross multiply
    663,246.96x = 995,064.08 × 213,957.84
  4. Step 4: Simplify right side
    663,246.96x = 212,901,761,218.39
  5. Step 5: Solve for x
    x = 212,901,761,218.39/663,246.96
  6. Step 6: Final answer
    x = 320,999.23

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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.