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Finding the Fourth Proportional to 290,802.20, 436,073.70 and 113,250.20

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Solution

The fourth proportional to 290,802.20, 436,073.70 and 113,250.20 is: 169,824.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,802.20 : 436,073.70 = 113,250.20 : x
  2. Step 2: Convert to fraction form
    290,802.20/436,073.70 = 113,250.20/x
  3. Step 3: Cross multiply
    290,802.20x = 436,073.70 × 113,250.20
  4. Step 4: Simplify right side
    290,802.20x = 49,385,433,739.74
  5. Step 5: Solve for x
    x = 49,385,433,739.74/290,802.20
  6. Step 6: Final answer
    x = 169,824.83

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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.