Home / 219,117.20-328,578.60-100,824.80

Finding the Fourth Proportional to 219,117.20, 328,578.60 and 100,824.80

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Solution

The fourth proportional to 219,117.20, 328,578.60 and 100,824.80 is: 151,192.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,117.20 : 328,578.60 = 100,824.80 : x
  2. Step 2: Convert to fraction form
    219,117.20/328,578.60 = 100,824.80/x
  3. Step 3: Cross multiply
    219,117.20x = 328,578.60 × 100,824.80
  4. Step 4: Simplify right side
    219,117.20x = 33,128,871,629.28
  5. Step 5: Solve for x
    x = 33,128,871,629.28/219,117.20
  6. Step 6: Final answer
    x = 151,192.47

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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.