Home / 287,992.60-431,945.15-110,583.16

Finding the Fourth Proportional to 287,992.60, 431,945.15 and 110,583.16

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Solution

The fourth proportional to 287,992.60, 431,945.15 and 110,583.16 is: 165,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,992.60 : 431,945.15 = 110,583.16 : x
  2. Step 2: Convert to fraction form
    287,992.60/431,945.15 = 110,583.16/x
  3. Step 3: Cross multiply
    287,992.60x = 431,945.15 × 110,583.16
  4. Step 4: Simplify right side
    287,992.60x = 47,765,857,750.41
  5. Step 5: Solve for x
    x = 47,765,857,750.41/287,992.60
  6. Step 6: Final answer
    x = 165,857.94

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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.