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Finding the Fourth Proportional to 255,651.98, 352,826.07 and 153,710.78

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Solution

The fourth proportional to 255,651.98, 352,826.07 and 153,710.78 is: 212,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,651.98 : 352,826.07 = 153,710.78 : x
  2. Step 2: Convert to fraction form
    255,651.98/352,826.07 = 153,710.78/x
  3. Step 3: Cross multiply
    255,651.98x = 352,826.07 × 153,710.78
  4. Step 4: Simplify right side
    255,651.98x = 54,233,170,424.03
  5. Step 5: Solve for x
    x = 54,233,170,424.03/255,651.98
  6. Step 6: Final answer
    x = 212,136.71

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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.