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Finding the Fourth Proportional to 666,291.42, 998,937.77 and 216,743.85

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Solution

The fourth proportional to 666,291.42, 998,937.77 and 216,743.85 is: 324,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,291.42 : 998,937.77 = 216,743.85 : x
  2. Step 2: Convert to fraction form
    666,291.42/998,937.77 = 216,743.85/x
  3. Step 3: Cross multiply
    666,291.42x = 998,937.77 × 216,743.85
  4. Step 4: Simplify right side
    666,291.42x = 216,513,617,096.50
  5. Step 5: Solve for x
    x = 216,513,617,096.50/666,291.42
  6. Step 6: Final answer
    x = 324,953.33

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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.