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Finding the Fourth Proportional to 282,635.12, 423,955.12 and 82,958.78

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Solution

The fourth proportional to 282,635.12, 423,955.12 and 82,958.78 is: 124,438.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,635.12 : 423,955.12 = 82,958.78 : x
  2. Step 2: Convert to fraction form
    282,635.12/423,955.12 = 82,958.78/x
  3. Step 3: Cross multiply
    282,635.12x = 423,955.12 × 82,958.78
  4. Step 4: Simplify right side
    282,635.12x = 35,170,799,529.95
  5. Step 5: Solve for x
    x = 35,170,799,529.95/282,635.12
  6. Step 6: Final answer
    x = 124,438.89

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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.