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Finding the Fourth Proportional to 663,087.60, 995,149.80 and 308,145.60

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Solution

The fourth proportional to 663,087.60, 995,149.80 and 308,145.60 is: 462,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,087.60 : 995,149.80 = 308,145.60 : x
  2. Step 2: Convert to fraction form
    663,087.60/995,149.80 = 308,145.60/x
  3. Step 3: Cross multiply
    663,087.60x = 995,149.80 × 308,145.60
  4. Step 4: Simplify right side
    663,087.60x = 306,651,032,210.88
  5. Step 5: Solve for x
    x = 306,651,032,210.88/663,087.60
  6. Step 6: Final answer
    x = 462,459.31

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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.