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Finding the Fourth Proportional to 210,059.08, 315,087 and 52,286.48

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Solution

The fourth proportional to 210,059.08, 315,087 and 52,286.48 is: 78,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,059.08 : 315,087 = 52,286.48 : x
  2. Step 2: Convert to fraction form
    210,059.08/315,087 = 52,286.48/x
  3. Step 3: Cross multiply
    210,059.08x = 315,087 × 52,286.48
  4. Step 4: Simplify right side
    210,059.08x = 16,474,790,123.76
  5. Step 5: Solve for x
    x = 16,474,790,123.76/210,059.08
  6. Step 6: Final answer
    x = 78,429.32

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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.