Home / 345,617.60-518,377.19-108,929.52

Finding the Fourth Proportional to 345,617.60, 518,377.19 and 108,929.52

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Solution

The fourth proportional to 345,617.60, 518,377.19 and 108,929.52 is: 163,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,617.60 : 518,377.19 = 108,929.52 : x
  2. Step 2: Convert to fraction form
    345,617.60/518,377.19 = 108,929.52/x
  3. Step 3: Cross multiply
    345,617.60x = 518,377.19 × 108,929.52
  4. Step 4: Simplify right side
    345,617.60x = 56,466,577,941.00
  5. Step 5: Solve for x
    x = 56,466,577,941.00/345,617.60
  6. Step 6: Final answer
    x = 163,378.77

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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.