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Finding the Fourth Proportional to 298,174.50, 447,223.83 and 98,445.78

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Solution

The fourth proportional to 298,174.50, 447,223.83 and 98,445.78 is: 147,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,174.50 : 447,223.83 = 98,445.78 : x
  2. Step 2: Convert to fraction form
    298,174.50/447,223.83 = 98,445.78/x
  3. Step 3: Cross multiply
    298,174.50x = 447,223.83 × 98,445.78
  4. Step 4: Simplify right side
    298,174.50x = 44,027,298,778.94
  5. Step 5: Solve for x
    x = 44,027,298,778.94/298,174.50
  6. Step 6: Final answer
    x = 147,656.15

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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.