Home / 256,175.80-353,507.94-143,005.72

Finding the Fourth Proportional to 256,175.80, 353,507.94 and 143,005.72

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Solution

The fourth proportional to 256,175.80, 353,507.94 and 143,005.72 is: 197,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,175.80 : 353,507.94 = 143,005.72 : x
  2. Step 2: Convert to fraction form
    256,175.80/353,507.94 = 143,005.72/x
  3. Step 3: Cross multiply
    256,175.80x = 353,507.94 × 143,005.72
  4. Step 4: Simplify right side
    256,175.80x = 50,553,657,485.42
  5. Step 5: Solve for x
    x = 50,553,657,485.42/256,175.80
  6. Step 6: Final answer
    x = 197,339.71

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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.