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Finding the Fourth Proportional to 199,490.70, 298,832.85 and 124,380.30

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Solution

The fourth proportional to 199,490.70, 298,832.85 and 124,380.30 is: 186,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,490.70 : 298,832.85 = 124,380.30 : x
  2. Step 2: Convert to fraction form
    199,490.70/298,832.85 = 124,380.30/x
  3. Step 3: Cross multiply
    199,490.70x = 298,832.85 × 124,380.30
  4. Step 4: Simplify right side
    199,490.70x = 37,168,919,532.86
  5. Step 5: Solve for x
    x = 37,168,919,532.86/199,490.70
  6. Step 6: Final answer
    x = 186,319.06

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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.