Home / 211,657.56-315,425.03-205,249.88

Finding the Fourth Proportional to 211,657.56, 315,425.03 and 205,249.88

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Solution

The fourth proportional to 211,657.56, 315,425.03 and 205,249.88 is: 305,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,657.56 : 315,425.03 = 205,249.88 : x
  2. Step 2: Convert to fraction form
    211,657.56/315,425.03 = 205,249.88/x
  3. Step 3: Cross multiply
    211,657.56x = 315,425.03 × 205,249.88
  4. Step 4: Simplify right side
    211,657.56x = 64,740,949,556.50
  5. Step 5: Solve for x
    x = 64,740,949,556.50/211,657.56
  6. Step 6: Final answer
    x = 305,875.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.