Home / 290,540.36-434,873.10-150,105.80

Finding the Fourth Proportional to 290,540.36, 434,873.10 and 150,105.80

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Solution

The fourth proportional to 290,540.36, 434,873.10 and 150,105.80 is: 224,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,540.36 : 434,873.10 = 150,105.80 : x
  2. Step 2: Convert to fraction form
    290,540.36/434,873.10 = 150,105.80/x
  3. Step 3: Cross multiply
    290,540.36x = 434,873.10 × 150,105.80
  4. Step 4: Simplify right side
    290,540.36x = 65,276,974,573.98
  5. Step 5: Solve for x
    x = 65,276,974,573.98/290,540.36
  6. Step 6: Final answer
    x = 224,674.38

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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.