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Finding the Fourth Proportional to 381,251.52, 526,134.84 and 228,296.40

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Solution

The fourth proportional to 381,251.52, 526,134.84 and 228,296.40 is: 315,053.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,251.52 : 526,134.84 = 228,296.40 : x
  2. Step 2: Convert to fraction form
    381,251.52/526,134.84 = 228,296.40/x
  3. Step 3: Cross multiply
    381,251.52x = 526,134.84 × 228,296.40
  4. Step 4: Simplify right side
    381,251.52x = 120,114,689,886.58
  5. Step 5: Solve for x
    x = 120,114,689,886.58/381,251.52
  6. Step 6: Final answer
    x = 315,053.67

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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.