Home / 216,275.08-324,421.55-74,218

Finding the Fourth Proportional to 216,275.08, 324,421.55 and 74,218

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Solution

The fourth proportional to 216,275.08, 324,421.55 and 74,218 is: 111,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,275.08 : 324,421.55 = 74,218 : x
  2. Step 2: Convert to fraction form
    216,275.08/324,421.55 = 74,218/x
  3. Step 3: Cross multiply
    216,275.08x = 324,421.55 × 74,218
  4. Step 4: Simplify right side
    216,275.08x = 24,077,918,597.90
  5. Step 5: Solve for x
    x = 24,077,918,597.90/216,275.08
  6. Step 6: Final answer
    x = 111,330.06

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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.