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Finding the Fourth Proportional to 219,441.86, 329,129.18 and 69,662.60

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Solution

The fourth proportional to 219,441.86, 329,129.18 and 69,662.60 is: 104,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,441.86 : 329,129.18 = 69,662.60 : x
  2. Step 2: Convert to fraction form
    219,441.86/329,129.18 = 69,662.60/x
  3. Step 3: Cross multiply
    219,441.86x = 329,129.18 × 69,662.60
  4. Step 4: Simplify right side
    219,441.86x = 22,927,994,066.36
  5. Step 5: Solve for x
    x = 22,927,994,066.36/219,441.86
  6. Step 6: Final answer
    x = 104,483.23

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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.