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Finding the Fourth Proportional to 216,261.98, 324,393 and 64,461.42

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Solution

The fourth proportional to 216,261.98, 324,393 and 64,461.42 is: 96,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,261.98 : 324,393 = 64,461.42 : x
  2. Step 2: Convert to fraction form
    216,261.98/324,393 = 64,461.42/x
  3. Step 3: Cross multiply
    216,261.98x = 324,393 × 64,461.42
  4. Step 4: Simplify right side
    216,261.98x = 20,910,833,418.06
  5. Step 5: Solve for x
    x = 20,910,833,418.06/216,261.98
  6. Step 6: Final answer
    x = 96,692.14

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1.5x scale

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.