Home / 287,273.25-431,291.39-245,422.17

Finding the Fourth Proportional to 287,273.25, 431,291.39 and 245,422.17

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Solution

The fourth proportional to 287,273.25, 431,291.39 and 245,422.17 is: 368,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,273.25 : 431,291.39 = 245,422.17 : x
  2. Step 2: Convert to fraction form
    287,273.25/431,291.39 = 245,422.17/x
  3. Step 3: Cross multiply
    287,273.25x = 431,291.39 × 245,422.17
  4. Step 4: Simplify right side
    287,273.25x = 105,848,467,609.01
  5. Step 5: Solve for x
    x = 105,848,467,609.01/287,273.25
  6. Step 6: Final answer
    x = 368,459.19

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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.