Home / 263,530.90-363,672.78-142,672.21

Finding the Fourth Proportional to 263,530.90, 363,672.78 and 142,672.21

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Solution

The fourth proportional to 263,530.90, 363,672.78 and 142,672.21 is: 196,887.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,530.90 : 363,672.78 = 142,672.21 : x
  2. Step 2: Convert to fraction form
    263,530.90/363,672.78 = 142,672.21/x
  3. Step 3: Cross multiply
    263,530.90x = 363,672.78 × 142,672.21
  4. Step 4: Simplify right side
    263,530.90x = 51,885,999,239.44
  5. Step 5: Solve for x
    x = 51,885,999,239.44/263,530.90
  6. Step 6: Final answer
    x = 196,887.72

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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.