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Finding the Fourth Proportional to 663,676.40, 995,903.40 and 242,994.80

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Solution

The fourth proportional to 663,676.40, 995,903.40 and 242,994.80 is: 364,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,676.40 : 995,903.40 = 242,994.80 : x
  2. Step 2: Convert to fraction form
    663,676.40/995,903.40 = 242,994.80/x
  3. Step 3: Cross multiply
    663,676.40x = 995,903.40 × 242,994.80
  4. Step 4: Simplify right side
    663,676.40x = 241,999,347,502.32
  5. Step 5: Solve for x
    x = 241,999,347,502.32/663,676.40
  6. Step 6: Final answer
    x = 364,634.55

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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.