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Finding the Fourth Proportional to 216,300.90, 324,451.35 and 127,727.40

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Solution

The fourth proportional to 216,300.90, 324,451.35 and 127,727.40 is: 191,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,300.90 : 324,451.35 = 127,727.40 : x
  2. Step 2: Convert to fraction form
    216,300.90/324,451.35 = 127,727.40/x
  3. Step 3: Cross multiply
    216,300.90x = 324,451.35 × 127,727.40
  4. Step 4: Simplify right side
    216,300.90x = 41,441,327,361.99
  5. Step 5: Solve for x
    x = 41,441,327,361.99/216,300.90
  6. Step 6: Final answer
    x = 191,591.10

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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.