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Finding the Fourth Proportional to 287,659.72, 431,551.86 and 110,166.72

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Solution

The fourth proportional to 287,659.72, 431,551.86 and 110,166.72 is: 165,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,659.72 : 431,551.86 = 110,166.72 : x
  2. Step 2: Convert to fraction form
    287,659.72/431,551.86 = 110,166.72/x
  3. Step 3: Cross multiply
    287,659.72x = 431,551.86 × 110,166.72
  4. Step 4: Simplify right side
    287,659.72x = 47,542,652,926.10
  5. Step 5: Solve for x
    x = 47,542,652,926.10/287,659.72
  6. Step 6: Final answer
    x = 165,273.93

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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.