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Finding the Fourth Proportional to 285,446.72, 428,210.37 and 116,991.42

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Solution

The fourth proportional to 285,446.72, 428,210.37 and 116,991.42 is: 175,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,446.72 : 428,210.37 = 116,991.42 : x
  2. Step 2: Convert to fraction form
    285,446.72/428,210.37 = 116,991.42/x
  3. Step 3: Cross multiply
    285,446.72x = 428,210.37 × 116,991.42
  4. Step 4: Simplify right side
    285,446.72x = 50,096,939,245.03
  5. Step 5: Solve for x
    x = 50,096,939,245.03/285,446.72
  6. Step 6: Final answer
    x = 175,503.65

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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.