Home / 228,822.80-343,234.20-215,992.40

Finding the Fourth Proportional to 228,822.80, 343,234.20 and 215,992.40

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Solution

The fourth proportional to 228,822.80, 343,234.20 and 215,992.40 is: 323,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,822.80 : 343,234.20 = 215,992.40 : x
  2. Step 2: Convert to fraction form
    228,822.80/343,234.20 = 215,992.40/x
  3. Step 3: Cross multiply
    228,822.80x = 343,234.20 × 215,992.40
  4. Step 4: Simplify right side
    228,822.80x = 74,135,978,620.08
  5. Step 5: Solve for x
    x = 74,135,978,620.08/228,822.80
  6. Step 6: Final answer
    x = 323,988.60

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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.