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Finding the Fourth Proportional to 228,758.40, 343,202.40 and 71,002.80

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Solution

The fourth proportional to 228,758.40, 343,202.40 and 71,002.80 is: 106,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,758.40 : 343,202.40 = 71,002.80 : x
  2. Step 2: Convert to fraction form
    228,758.40/343,202.40 = 71,002.80/x
  3. Step 3: Cross multiply
    228,758.40x = 343,202.40 × 71,002.80
  4. Step 4: Simplify right side
    228,758.40x = 24,368,331,366.72
  5. Step 5: Solve for x
    x = 24,368,331,366.72/228,758.40
  6. Step 6: Final answer
    x = 106,524.31

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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.