Home / 215,848.80-323,427.60-136,821.60

Finding the Fourth Proportional to 215,848.80, 323,427.60 and 136,821.60

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Solution

The fourth proportional to 215,848.80, 323,427.60 and 136,821.60 is: 205,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,848.80 : 323,427.60 = 136,821.60 : x
  2. Step 2: Convert to fraction form
    215,848.80/323,427.60 = 136,821.60/x
  3. Step 3: Cross multiply
    215,848.80x = 323,427.60 × 136,821.60
  4. Step 4: Simplify right side
    215,848.80x = 44,251,881,716.16
  5. Step 5: Solve for x
    x = 44,251,881,716.16/215,848.80
  6. Step 6: Final answer
    x = 205,013.33

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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.