Home / 286,260.45-428,736.66-136,605.83

Finding the Fourth Proportional to 286,260.45, 428,736.66 and 136,605.83

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Solution

The fourth proportional to 286,260.45, 428,736.66 and 136,605.83 is: 204,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,260.45 : 428,736.66 = 136,605.83 : x
  2. Step 2: Convert to fraction form
    286,260.45/428,736.66 = 136,605.83/x
  3. Step 3: Cross multiply
    286,260.45x = 428,736.66 × 136,605.83
  4. Step 4: Simplify right side
    286,260.45x = 58,567,925,403.18
  5. Step 5: Solve for x
    x = 58,567,925,403.18/286,260.45
  6. Step 6: Final answer
    x = 204,596.64

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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.