Home / 305,845.72-422,088.78-169,886.68

Finding the Fourth Proportional to 305,845.72, 422,088.78 and 169,886.68

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Solution

The fourth proportional to 305,845.72, 422,088.78 and 169,886.68 is: 234,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,845.72 : 422,088.78 = 169,886.68 : x
  2. Step 2: Convert to fraction form
    305,845.72/422,088.78 = 169,886.68/x
  3. Step 3: Cross multiply
    305,845.72x = 422,088.78 × 169,886.68
  4. Step 4: Simplify right side
    305,845.72x = 71,707,261,499.45
  5. Step 5: Solve for x
    x = 71,707,261,499.45/305,845.72
  6. Step 6: Final answer
    x = 234,455.66

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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.