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Finding the Fourth Proportional to 216,762.88, 325,202.76 and 90,361.12

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Solution

The fourth proportional to 216,762.88, 325,202.76 and 90,361.12 is: 135,566.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,762.88 : 325,202.76 = 90,361.12 : x
  2. Step 2: Convert to fraction form
    216,762.88/325,202.76 = 90,361.12/x
  3. Step 3: Cross multiply
    216,762.88x = 325,202.76 × 90,361.12
  4. Step 4: Simplify right side
    216,762.88x = 29,385,685,620.69
  5. Step 5: Solve for x
    x = 29,385,685,620.69/216,762.88
  6. Step 6: Final answer
    x = 135,566.04

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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.