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Finding the Fourth Proportional to 216,295.20, 324,254.88 and 103,919.04

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Solution

The fourth proportional to 216,295.20, 324,254.88 and 103,919.04 is: 155,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,295.20 : 324,254.88 = 103,919.04 : x
  2. Step 2: Convert to fraction form
    216,295.20/324,254.88 = 103,919.04/x
  3. Step 3: Cross multiply
    216,295.20x = 324,254.88 × 103,919.04
  4. Step 4: Simplify right side
    216,295.20x = 33,696,255,844.92
  5. Step 5: Solve for x
    x = 33,696,255,844.92/216,295.20
  6. Step 6: Final answer
    x = 155,788.27

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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.