Home / 345,629.60-518,395.18-108,941.52

Finding the Fourth Proportional to 345,629.60, 518,395.18 and 108,941.52

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Solution

The fourth proportional to 345,629.60, 518,395.18 and 108,941.52 is: 163,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,629.60 : 518,395.18 = 108,941.52 : x
  2. Step 2: Convert to fraction form
    345,629.60/518,395.18 = 108,941.52/x
  3. Step 3: Cross multiply
    345,629.60x = 518,395.18 × 108,941.52
  4. Step 4: Simplify right side
    345,629.60x = 56,474,758,869.87
  5. Step 5: Solve for x
    x = 56,474,758,869.87/345,629.60
  6. Step 6: Final answer
    x = 163,396.77

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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.