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Finding the Fourth Proportional to 287,893.76, 431,896 and 110,386.92

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Solution

The fourth proportional to 287,893.76, 431,896 and 110,386.92 is: 165,601.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,893.76 : 431,896 = 110,386.92 : x
  2. Step 2: Convert to fraction form
    287,893.76/431,896 = 110,386.92/x
  3. Step 3: Cross multiply
    287,893.76x = 431,896 × 110,386.92
  4. Step 4: Simplify right side
    287,893.76x = 47,675,669,200.32
  5. Step 5: Solve for x
    x = 47,675,669,200.32/287,893.76
  6. Step 6: Final answer
    x = 165,601.61

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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.