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Finding the Fourth Proportional to 198,503.60, 297,841.80 and 100,007.60

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Solution

The fourth proportional to 198,503.60, 297,841.80 and 100,007.60 is: 150,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,503.60 : 297,841.80 = 100,007.60 : x
  2. Step 2: Convert to fraction form
    198,503.60/297,841.80 = 100,007.60/x
  3. Step 3: Cross multiply
    198,503.60x = 297,841.80 × 100,007.60
  4. Step 4: Simplify right side
    198,503.60x = 29,786,443,597.68
  5. Step 5: Solve for x
    x = 29,786,443,597.68/198,503.60
  6. Step 6: Final answer
    x = 150,054.93

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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.