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Finding the Fourth Proportional to 405,967.02, 609,007.04 and 169,255.26

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Solution

The fourth proportional to 405,967.02, 609,007.04 and 169,255.26 is: 253,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,967.02 : 609,007.04 = 169,255.26 : x
  2. Step 2: Convert to fraction form
    405,967.02/609,007.04 = 169,255.26/x
  3. Step 3: Cross multiply
    405,967.02x = 609,007.04 × 169,255.26
  4. Step 4: Simplify right side
    405,967.02x = 103,077,644,050.75
  5. Step 5: Solve for x
    x = 103,077,644,050.75/405,967.02
  6. Step 6: Final answer
    x = 253,906.45

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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.