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Finding the Fourth Proportional to 255,610.69, 352,745.21 and 140,893.76

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Solution

The fourth proportional to 255,610.69, 352,745.21 and 140,893.76 is: 194,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,610.69 : 352,745.21 = 140,893.76 : x
  2. Step 2: Convert to fraction form
    255,610.69/352,745.21 = 140,893.76/x
  3. Step 3: Cross multiply
    255,610.69x = 352,745.21 × 140,893.76
  4. Step 4: Simplify right side
    255,610.69x = 49,699,600,192.99
  5. Step 5: Solve for x
    x = 49,699,600,192.99/255,610.69
  6. Step 6: Final answer
    x = 194,434.75

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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.