Home / 345,637.69-518,456.60-108,998.89

Finding the Fourth Proportional to 345,637.69, 518,456.60 and 108,998.89

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Solution

The fourth proportional to 345,637.69, 518,456.60 and 108,998.89 is: 163,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,637.69 : 518,456.60 = 108,998.89 : x
  2. Step 2: Convert to fraction form
    345,637.69/518,456.60 = 108,998.89/x
  3. Step 3: Cross multiply
    345,637.69x = 518,456.60 × 108,998.89
  4. Step 4: Simplify right side
    345,637.69x = 56,511,190,775.90
  5. Step 5: Solve for x
    x = 56,511,190,775.90/345,637.69
  6. Step 6: Final answer
    x = 163,498.35

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Similar ratio
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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.