Home / 216,249.03-324,404.55-66,501.90

Finding the Fourth Proportional to 216,249.03, 324,404.55 and 66,501.90

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Solution

The fourth proportional to 216,249.03, 324,404.55 and 66,501.90 is: 99,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,249.03 : 324,404.55 = 66,501.90 : x
  2. Step 2: Convert to fraction form
    216,249.03/324,404.55 = 66,501.90/x
  3. Step 3: Cross multiply
    216,249.03x = 324,404.55 × 66,501.90
  4. Step 4: Simplify right side
    216,249.03x = 21,573,518,943.65
  5. Step 5: Solve for x
    x = 21,573,518,943.65/216,249.03
  6. Step 6: Final answer
    x = 99,762.38

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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.