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Finding the Fourth Proportional to 449,630.78, 674,475.33 and 134,119.58

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Solution

The fourth proportional to 449,630.78, 674,475.33 and 134,119.58 is: 201,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,630.78 : 674,475.33 = 134,119.58 : x
  2. Step 2: Convert to fraction form
    449,630.78/674,475.33 = 134,119.58/x
  3. Step 3: Cross multiply
    449,630.78x = 674,475.33 × 134,119.58
  4. Step 4: Simplify right side
    449,630.78x = 90,460,347,979.96
  5. Step 5: Solve for x
    x = 90,460,347,979.96/449,630.78
  6. Step 6: Final answer
    x = 201,188.07

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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.