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Finding the Fourth Proportional to 356,371.52, 534,816.48 and 287,087.68

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Solution

The fourth proportional to 356,371.52, 534,816.48 and 287,087.68 is: 430,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,371.52 : 534,816.48 = 287,087.68 : x
  2. Step 2: Convert to fraction form
    356,371.52/534,816.48 = 287,087.68/x
  3. Step 3: Cross multiply
    356,371.52x = 534,816.48 × 287,087.68
  4. Step 4: Simplify right side
    356,371.52x = 153,539,222,468.97
  5. Step 5: Solve for x
    x = 153,539,222,468.97/356,371.52
  6. Step 6: Final answer
    x = 430,840.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.