Home / 438,636.12-658,016.94-135,055.96

Finding the Fourth Proportional to 438,636.12, 658,016.94 and 135,055.96

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Solution

The fourth proportional to 438,636.12, 658,016.94 and 135,055.96 is: 202,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,636.12 : 658,016.94 = 135,055.96 : x
  2. Step 2: Convert to fraction form
    438,636.12/658,016.94 = 135,055.96/x
  3. Step 3: Cross multiply
    438,636.12x = 658,016.94 × 135,055.96
  4. Step 4: Simplify right side
    438,636.12x = 88,869,109,527.96
  5. Step 5: Solve for x
    x = 88,869,109,527.96/438,636.12
  6. Step 6: Final answer
    x = 202,603.26

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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.