Home / 219,087.47-328,627.78-112,409.86

Finding the Fourth Proportional to 219,087.47, 328,627.78 and 112,409.86

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Solution

The fourth proportional to 219,087.47, 328,627.78 and 112,409.86 is: 168,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,087.47 : 328,627.78 = 112,409.86 : x
  2. Step 2: Convert to fraction form
    219,087.47/328,627.78 = 112,409.86/x
  3. Step 3: Cross multiply
    219,087.47x = 328,627.78 × 112,409.86
  4. Step 4: Simplify right side
    219,087.47x = 36,941,002,887.80
  5. Step 5: Solve for x
    x = 36,941,002,887.80/219,087.47
  6. Step 6: Final answer
    x = 168,613.04

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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.