Home / 268,852.14-403,278.18-81,863.64

Finding the Fourth Proportional to 268,852.14, 403,278.18 and 81,863.64

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Solution

The fourth proportional to 268,852.14, 403,278.18 and 81,863.64 is: 122,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,852.14 : 403,278.18 = 81,863.64 : x
  2. Step 2: Convert to fraction form
    268,852.14/403,278.18 = 81,863.64/x
  3. Step 3: Cross multiply
    268,852.14x = 403,278.18 × 81,863.64
  4. Step 4: Simplify right side
    268,852.14x = 33,013,819,747.38
  5. Step 5: Solve for x
    x = 33,013,819,747.38/268,852.14
  6. Step 6: Final answer
    x = 122,795.45

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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.