Home / 345,230.20-517,845.30-108,645.40

Finding the Fourth Proportional to 345,230.20, 517,845.30 and 108,645.40

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Solution

The fourth proportional to 345,230.20, 517,845.30 and 108,645.40 is: 162,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,230.20 : 517,845.30 = 108,645.40 : x
  2. Step 2: Convert to fraction form
    345,230.20/517,845.30 = 108,645.40/x
  3. Step 3: Cross multiply
    345,230.20x = 517,845.30 × 108,645.40
  4. Step 4: Simplify right side
    345,230.20x = 56,261,509,756.62
  5. Step 5: Solve for x
    x = 56,261,509,756.62/345,230.20
  6. Step 6: Final answer
    x = 162,968.10

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1.5x scale

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.