Home / 228,760.20-343,304.33-128,814.30

Finding the Fourth Proportional to 228,760.20, 343,304.33 and 128,814.30

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Solution

The fourth proportional to 228,760.20, 343,304.33 and 128,814.30 is: 193,313.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,760.20 : 343,304.33 = 128,814.30 : x
  2. Step 2: Convert to fraction form
    228,760.20/343,304.33 = 128,814.30/x
  3. Step 3: Cross multiply
    228,760.20x = 343,304.33 × 128,814.30
  4. Step 4: Simplify right side
    228,760.20x = 44,222,506,311.85
  5. Step 5: Solve for x
    x = 44,222,506,311.85/228,760.20
  6. Step 6: Final answer
    x = 193,313.81

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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.