Home / 287,667.70-431,505.22-110,185.36

Finding the Fourth Proportional to 287,667.70, 431,505.22 and 110,185.36

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Solution

The fourth proportional to 287,667.70, 431,505.22 and 110,185.36 is: 165,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,667.70 : 431,505.22 = 110,185.36 : x
  2. Step 2: Convert to fraction form
    287,667.70/431,505.22 = 110,185.36/x
  3. Step 3: Cross multiply
    287,667.70x = 431,505.22 × 110,185.36
  4. Step 4: Simplify right side
    287,667.70x = 47,545,558,007.58
  5. Step 5: Solve for x
    x = 47,545,558,007.58/287,667.70
  6. Step 6: Final answer
    x = 165,279.45

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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.