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Finding the Fourth Proportional to 290,721.66, 436,267.17 and 150,480.29

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Solution

The fourth proportional to 290,721.66, 436,267.17 and 150,480.29 is: 225,816.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,721.66 : 436,267.17 = 150,480.29 : x
  2. Step 2: Convert to fraction form
    290,721.66/436,267.17 = 150,480.29/x
  3. Step 3: Cross multiply
    290,721.66x = 436,267.17 × 150,480.29
  4. Step 4: Simplify right side
    290,721.66x = 65,649,608,077.74
  5. Step 5: Solve for x
    x = 65,649,608,077.74/290,721.66
  6. Step 6: Final answer
    x = 225,816.02

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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.