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Finding the Fourth Proportional to 218,369.92, 301,346.88 and 122,876.56

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Solution

The fourth proportional to 218,369.92, 301,346.88 and 122,876.56 is: 169,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,369.92 : 301,346.88 = 122,876.56 : x
  2. Step 2: Convert to fraction form
    218,369.92/301,346.88 = 122,876.56/x
  3. Step 3: Cross multiply
    218,369.92x = 301,346.88 × 122,876.56
  4. Step 4: Simplify right side
    218,369.92x = 37,028,467,981.13
  5. Step 5: Solve for x
    x = 37,028,467,981.13/218,369.92
  6. Step 6: Final answer
    x = 169,567.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.