Home / 220,975.85-304,937.74-135,078.69

Finding the Fourth Proportional to 220,975.85, 304,937.74 and 135,078.69

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Solution

The fourth proportional to 220,975.85, 304,937.74 and 135,078.69 is: 186,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,975.85 : 304,937.74 = 135,078.69 : x
  2. Step 2: Convert to fraction form
    220,975.85/304,937.74 = 135,078.69/x
  3. Step 3: Cross multiply
    220,975.85x = 304,937.74 × 135,078.69
  4. Step 4: Simplify right side
    220,975.85x = 41,190,589,667.94
  5. Step 5: Solve for x
    x = 41,190,589,667.94/220,975.85
  6. Step 6: Final answer
    x = 186,403.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.