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Finding the Fourth Proportional to 198,662.76, 298,189.98 and 145,924.20

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Solution

The fourth proportional to 198,662.76, 298,189.98 and 145,924.20 is: 219,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,662.76 : 298,189.98 = 145,924.20 : x
  2. Step 2: Convert to fraction form
    198,662.76/298,189.98 = 145,924.20/x
  3. Step 3: Cross multiply
    198,662.76x = 298,189.98 × 145,924.20
  4. Step 4: Simplify right side
    198,662.76x = 43,513,134,279.52
  5. Step 5: Solve for x
    x = 43,513,134,279.52/198,662.76
  6. Step 6: Final answer
    x = 219,030.15

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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.