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Finding the Fourth Proportional to 290,800.35, 436,021.92 and 113,100.30

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Solution

The fourth proportional to 290,800.35, 436,021.92 and 113,100.30 is: 169,580.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,800.35 : 436,021.92 = 113,100.30 : x
  2. Step 2: Convert to fraction form
    290,800.35/436,021.92 = 113,100.30/x
  3. Step 3: Cross multiply
    290,800.35x = 436,021.92 × 113,100.30
  4. Step 4: Simplify right side
    290,800.35x = 49,314,209,958.58
  5. Step 5: Solve for x
    x = 49,314,209,958.58/290,800.35
  6. Step 6: Final answer
    x = 169,580.99

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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.