Home / 215,331.25-322,999.76-67,587.25

Finding the Fourth Proportional to 215,331.25, 322,999.76 and 67,587.25

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Solution

The fourth proportional to 215,331.25, 322,999.76 and 67,587.25 is: 101,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,331.25 : 322,999.76 = 67,587.25 : x
  2. Step 2: Convert to fraction form
    215,331.25/322,999.76 = 67,587.25/x
  3. Step 3: Cross multiply
    215,331.25x = 322,999.76 × 67,587.25
  4. Step 4: Simplify right side
    215,331.25x = 21,830,665,529.06
  5. Step 5: Solve for x
    x = 21,830,665,529.06/215,331.25
  6. Step 6: Final answer
    x = 101,381.78

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1.5x scale

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.