Home / 216,499.43-324,666.12-74,318.21

Finding the Fourth Proportional to 216,499.43, 324,666.12 and 74,318.21

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Solution

The fourth proportional to 216,499.43, 324,666.12 and 74,318.21 is: 111,448.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,499.43 : 324,666.12 = 74,318.21 : x
  2. Step 2: Convert to fraction form
    216,499.43/324,666.12 = 74,318.21/x
  3. Step 3: Cross multiply
    216,499.43x = 324,666.12 × 74,318.21
  4. Step 4: Simplify right side
    216,499.43x = 24,128,604,758.91
  5. Step 5: Solve for x
    x = 24,128,604,758.91/216,499.43
  6. Step 6: Final answer
    x = 111,448.81

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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.