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Finding the Fourth Proportional to 663,609.20, 995,413.80 and 164,973.20

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Solution

The fourth proportional to 663,609.20, 995,413.80 and 164,973.20 is: 247,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,609.20 : 995,413.80 = 164,973.20 : x
  2. Step 2: Convert to fraction form
    663,609.20/995,413.80 = 164,973.20/x
  3. Step 3: Cross multiply
    663,609.20x = 995,413.80 × 164,973.20
  4. Step 4: Simplify right side
    663,609.20x = 164,216,599,910.16
  5. Step 5: Solve for x
    x = 164,216,599,910.16/663,609.20
  6. Step 6: Final answer
    x = 247,459.80

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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.