Home / 208,857.16-313,284.30-51,087.88

Finding the Fourth Proportional to 208,857.16, 313,284.30 and 51,087.88

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Solution

The fourth proportional to 208,857.16, 313,284.30 and 51,087.88 is: 76,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,857.16 : 313,284.30 = 51,087.88 : x
  2. Step 2: Convert to fraction form
    208,857.16/313,284.30 = 51,087.88/x
  3. Step 3: Cross multiply
    208,857.16x = 313,284.30 × 51,087.88
  4. Step 4: Simplify right side
    208,857.16x = 16,005,030,724.28
  5. Step 5: Solve for x
    x = 16,005,030,724.28/208,857.16
  6. Step 6: Final answer
    x = 76,631.47

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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.