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Finding the Fourth Proportional to 381,304.05, 526,216.07 and 228,313.03

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Solution

The fourth proportional to 381,304.05, 526,216.07 and 228,313.03 is: 315,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,304.05 : 526,216.07 = 228,313.03 : x
  2. Step 2: Convert to fraction form
    381,304.05/526,216.07 = 228,313.03/x
  3. Step 3: Cross multiply
    381,304.05x = 526,216.07 × 228,313.03
  4. Step 4: Simplify right side
    381,304.05x = 120,141,985,376.39
  5. Step 5: Solve for x
    x = 120,141,985,376.39/381,304.05
  6. Step 6: Final answer
    x = 315,081.85

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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.