Home / 216,548.82-324,878.58-90,147.04

Finding the Fourth Proportional to 216,548.82, 324,878.58 and 90,147.04

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Solution

The fourth proportional to 216,548.82, 324,878.58 and 90,147.04 is: 135,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,548.82 : 324,878.58 = 90,147.04 : x
  2. Step 2: Convert to fraction form
    216,548.82/324,878.58 = 90,147.04/x
  3. Step 3: Cross multiply
    216,548.82x = 324,878.58 × 90,147.04
  4. Step 4: Simplify right side
    216,548.82x = 29,286,842,346.40
  5. Step 5: Solve for x
    x = 29,286,842,346.40/216,548.82
  6. Step 6: Final answer
    x = 135,243.60

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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.