Home / 287,669.56-431,508.02-110,187.24

Finding the Fourth Proportional to 287,669.56, 431,508.02 and 110,187.24

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Solution

The fourth proportional to 287,669.56, 431,508.02 and 110,187.24 is: 165,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,669.56 : 431,508.02 = 110,187.24 : x
  2. Step 2: Convert to fraction form
    287,669.56/431,508.02 = 110,187.24/x
  3. Step 3: Cross multiply
    287,669.56x = 431,508.02 × 110,187.24
  4. Step 4: Simplify right side
    287,669.56x = 47,546,677,761.66
  5. Step 5: Solve for x
    x = 47,546,677,761.66/287,669.56
  6. Step 6: Final answer
    x = 165,282.27

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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.