Home / 287,669.46-431,507.84-110,187.12

Finding the Fourth Proportional to 287,669.46, 431,507.84 and 110,187.12

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Solution

The fourth proportional to 287,669.46, 431,507.84 and 110,187.12 is: 165,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,669.46 : 431,507.84 = 110,187.12 : x
  2. Step 2: Convert to fraction form
    287,669.46/431,507.84 = 110,187.12/x
  3. Step 3: Cross multiply
    287,669.46x = 431,507.84 × 110,187.12
  4. Step 4: Simplify right side
    287,669.46x = 47,546,605,596.09
  5. Step 5: Solve for x
    x = 47,546,605,596.09/287,669.46
  6. Step 6: Final answer
    x = 165,282.08

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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.