Home / 213,627.88-320,365.20-63,840.28

Finding the Fourth Proportional to 213,627.88, 320,365.20 and 63,840.28

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Solution

The fourth proportional to 213,627.88, 320,365.20 and 63,840.28 is: 95,737.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,627.88 : 320,365.20 = 63,840.28 : x
  2. Step 2: Convert to fraction form
    213,627.88/320,365.20 = 63,840.28/x
  3. Step 3: Cross multiply
    213,627.88x = 320,365.20 × 63,840.28
  4. Step 4: Simplify right side
    213,627.88x = 20,452,204,070.26
  5. Step 5: Solve for x
    x = 20,452,204,070.26/213,627.88
  6. Step 6: Final answer
    x = 95,737.52

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1.5x scale

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.