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Finding the Fourth Proportional to 449,365.80, 674,145.90 and 149,795.40

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Solution

The fourth proportional to 449,365.80, 674,145.90 and 149,795.40 is: 224,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,365.80 : 674,145.90 = 149,795.40 : x
  2. Step 2: Convert to fraction form
    449,365.80/674,145.90 = 149,795.40/x
  3. Step 3: Cross multiply
    449,365.80x = 674,145.90 × 149,795.40
  4. Step 4: Simplify right side
    449,365.80x = 100,983,954,748.86
  5. Step 5: Solve for x
    x = 100,983,954,748.86/449,365.80
  6. Step 6: Final answer
    x = 224,725.50

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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.