Home / 345,200.20-517,800.30-108,615.40

Finding the Fourth Proportional to 345,200.20, 517,800.30 and 108,615.40

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Solution

The fourth proportional to 345,200.20, 517,800.30 and 108,615.40 is: 162,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,200.20 : 517,800.30 = 108,615.40 : x
  2. Step 2: Convert to fraction form
    345,200.20/517,800.30 = 108,615.40/x
  3. Step 3: Cross multiply
    345,200.20x = 517,800.30 × 108,615.40
  4. Step 4: Simplify right side
    345,200.20x = 56,241,086,704.62
  5. Step 5: Solve for x
    x = 56,241,086,704.62/345,200.20
  6. Step 6: Final answer
    x = 162,923.10

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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.