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Finding the Fourth Proportional to 290,404.12, 435,507.92 and 110,446.78

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Solution

The fourth proportional to 290,404.12, 435,507.92 and 110,446.78 is: 165,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,404.12 : 435,507.92 = 110,446.78 : x
  2. Step 2: Convert to fraction form
    290,404.12/435,507.92 = 110,446.78/x
  3. Step 3: Cross multiply
    290,404.12x = 435,507.92 × 110,446.78
  4. Step 4: Simplify right side
    290,404.12x = 48,100,447,428.50
  5. Step 5: Solve for x
    x = 48,100,447,428.50/290,404.12
  6. Step 6: Final answer
    x = 165,632.80

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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.