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Finding the Fourth Proportional to 665,392.06, 998,374.02 and 216,250.57

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Solution

The fourth proportional to 665,392.06, 998,374.02 and 216,250.57 is: 324,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,392.06 : 998,374.02 = 216,250.57 : x
  2. Step 2: Convert to fraction form
    665,392.06/998,374.02 = 216,250.57/x
  3. Step 3: Cross multiply
    665,392.06x = 998,374.02 × 216,250.57
  4. Step 4: Simplify right side
    665,392.06x = 215,898,950,898.19
  5. Step 5: Solve for x
    x = 215,898,950,898.19/665,392.06
  6. Step 6: Final answer
    x = 324,468.78

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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.