Home / 208,860.16-313,288.80-51,090.88

Finding the Fourth Proportional to 208,860.16, 313,288.80 and 51,090.88

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Solution

The fourth proportional to 208,860.16, 313,288.80 and 51,090.88 is: 76,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,860.16 : 313,288.80 = 51,090.88 : x
  2. Step 2: Convert to fraction form
    208,860.16/313,288.80 = 51,090.88/x
  3. Step 3: Cross multiply
    208,860.16x = 313,288.80 × 51,090.88
  4. Step 4: Simplify right side
    208,860.16x = 16,006,200,486.14
  5. Step 5: Solve for x
    x = 16,006,200,486.14/208,860.16
  6. Step 6: Final answer
    x = 76,635.97

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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.