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Finding the Fourth Proportional to 216,181.40, 324,464.10 and 127,323.80

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Solution

The fourth proportional to 216,181.40, 324,464.10 and 127,323.80 is: 191,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,181.40 : 324,464.10 = 127,323.80 : x
  2. Step 2: Convert to fraction form
    216,181.40/324,464.10 = 127,323.80/x
  3. Step 3: Cross multiply
    216,181.40x = 324,464.10 × 127,323.80
  4. Step 4: Simplify right side
    216,181.40x = 41,312,002,175.58
  5. Step 5: Solve for x
    x = 41,312,002,175.58/216,181.40
  6. Step 6: Final answer
    x = 191,098.78

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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.