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Finding the Fourth Proportional to 384,375.09, 530,248.97 and 248,525.54

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Solution

The fourth proportional to 384,375.09, 530,248.97 and 248,525.54 is: 342,843.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,375.09 : 530,248.97 = 248,525.54 : x
  2. Step 2: Convert to fraction form
    384,375.09/530,248.97 = 248,525.54/x
  3. Step 3: Cross multiply
    384,375.09x = 530,248.97 × 248,525.54
  4. Step 4: Simplify right side
    384,375.09x = 131,780,407,709.82
  5. Step 5: Solve for x
    x = 131,780,407,709.82/384,375.09
  6. Step 6: Final answer
    x = 342,843.26

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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.