Home / 198,001.20-297,001.80-186,337.20

Finding the Fourth Proportional to 198,001.20, 297,001.80 and 186,337.20

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Solution

The fourth proportional to 198,001.20, 297,001.80 and 186,337.20 is: 279,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,001.20 : 297,001.80 = 186,337.20 : x
  2. Step 2: Convert to fraction form
    198,001.20/297,001.80 = 186,337.20/x
  3. Step 3: Cross multiply
    198,001.20x = 297,001.80 × 186,337.20
  4. Step 4: Simplify right side
    198,001.20x = 55,342,483,806.96
  5. Step 5: Solve for x
    x = 55,342,483,806.96/198,001.20
  6. Step 6: Final answer
    x = 279,505.80

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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.