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Finding the Fourth Proportional to 640,894.66, 961,396.86 and 167,579.26

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Solution

The fourth proportional to 640,894.66, 961,396.86 and 167,579.26 is: 251,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,894.66 : 961,396.86 = 167,579.26 : x
  2. Step 2: Convert to fraction form
    640,894.66/961,396.86 = 167,579.26/x
  3. Step 3: Cross multiply
    640,894.66x = 961,396.86 × 167,579.26
  4. Step 4: Simplify right side
    640,894.66x = 161,110,174,365.12
  5. Step 5: Solve for x
    x = 161,110,174,365.12/640,894.66
  6. Step 6: Final answer
    x = 251,383.24

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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.