Home / 215,232.40-322,848.60-57,485.20

Finding the Fourth Proportional to 215,232.40, 322,848.60 and 57,485.20

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Solution

The fourth proportional to 215,232.40, 322,848.60 and 57,485.20 is: 86,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,232.40 : 322,848.60 = 57,485.20 : x
  2. Step 2: Convert to fraction form
    215,232.40/322,848.60 = 57,485.20/x
  3. Step 3: Cross multiply
    215,232.40x = 322,848.60 × 57,485.20
  4. Step 4: Simplify right side
    215,232.40x = 18,559,016,340.72
  5. Step 5: Solve for x
    x = 18,559,016,340.72/215,232.40
  6. Step 6: Final answer
    x = 86,227.80

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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.