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Finding the Fourth Proportional to 290,979.92, 436,703.16 and 150,778.64

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Solution

The fourth proportional to 290,979.92, 436,703.16 and 150,778.64 is: 226,288.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,979.92 : 436,703.16 = 150,778.64 : x
  2. Step 2: Convert to fraction form
    290,979.92/436,703.16 = 150,778.64/x
  3. Step 3: Cross multiply
    290,979.92x = 436,703.16 × 150,778.64
  4. Step 4: Simplify right side
    290,979.92x = 65,845,508,548.50
  5. Step 5: Solve for x
    x = 65,845,508,548.50/290,979.92
  6. Step 6: Final answer
    x = 226,288.84

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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.