Home / 257,973.24-387,109.26-108,200.20

Finding the Fourth Proportional to 257,973.24, 387,109.26 and 108,200.20

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Solution

The fourth proportional to 257,973.24, 387,109.26 and 108,200.20 is: 162,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,973.24 : 387,109.26 = 108,200.20 : x
  2. Step 2: Convert to fraction form
    257,973.24/387,109.26 = 108,200.20/x
  3. Step 3: Cross multiply
    257,973.24x = 387,109.26 × 108,200.20
  4. Step 4: Simplify right side
    257,973.24x = 41,885,299,353.85
  5. Step 5: Solve for x
    x = 41,885,299,353.85/257,973.24
  6. Step 6: Final answer
    x = 162,362.96

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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.