Home / 345,265.20-517,897.80-108,680.40

Finding the Fourth Proportional to 345,265.20, 517,897.80 and 108,680.40

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Solution

The fourth proportional to 345,265.20, 517,897.80 and 108,680.40 is: 163,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,265.20 : 517,897.80 = 108,680.40 : x
  2. Step 2: Convert to fraction form
    345,265.20/517,897.80 = 108,680.40/x
  3. Step 3: Cross multiply
    345,265.20x = 517,897.80 × 108,680.40
  4. Step 4: Simplify right side
    345,265.20x = 56,285,340,063.12
  5. Step 5: Solve for x
    x = 56,285,340,063.12/345,265.20
  6. Step 6: Final answer
    x = 163,020.60

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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.