Home / 236,200-326,539.20-226,285.60

Finding the Fourth Proportional to 236,200, 326,539.20 and 226,285.60

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Solution

The fourth proportional to 236,200, 326,539.20 and 226,285.60 is: 312,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,200 : 326,539.20 = 226,285.60 : x
  2. Step 2: Convert to fraction form
    236,200/326,539.20 = 226,285.60/x
  3. Step 3: Cross multiply
    236,200x = 326,539.20 × 226,285.60
  4. Step 4: Simplify right side
    236,200x = 73,891,118,795.52
  5. Step 5: Solve for x
    x = 73,891,118,795.52/236,200
  6. Step 6: Final answer
    x = 312,832.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.