Home / 297,078.12-445,648.46-86,716.67

Finding the Fourth Proportional to 297,078.12, 445,648.46 and 86,716.67

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Solution

The fourth proportional to 297,078.12, 445,648.46 and 86,716.67 is: 130,084.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,078.12 : 445,648.46 = 86,716.67 : x
  2. Step 2: Convert to fraction form
    297,078.12/445,648.46 = 86,716.67/x
  3. Step 3: Cross multiply
    297,078.12x = 445,648.46 × 86,716.67
  4. Step 4: Simplify right side
    297,078.12x = 38,645,147,780.00
  5. Step 5: Solve for x
    x = 38,645,147,780.00/297,078.12
  6. Step 6: Final answer
    x = 130,084.13

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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.