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Finding the Fourth Proportional to 449,670.80, 674,594.76 and 134,120.72

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Solution

The fourth proportional to 449,670.80, 674,594.76 and 134,120.72 is: 201,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,670.80 : 674,594.76 = 134,120.72 : x
  2. Step 2: Convert to fraction form
    449,670.80/674,594.76 = 134,120.72/x
  3. Step 3: Cross multiply
    449,670.80x = 674,594.76 × 134,120.72
  4. Step 4: Simplify right side
    449,670.80x = 90,477,134,919.43
  5. Step 5: Solve for x
    x = 90,477,134,919.43/449,670.80
  6. Step 6: Final answer
    x = 201,207.49

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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.