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Finding the Fourth Proportional to 356,504.25, 534,751.30 and 86,634.37

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Solution

The fourth proportional to 356,504.25, 534,751.30 and 86,634.37 is: 129,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,504.25 : 534,751.30 = 86,634.37 : x
  2. Step 2: Convert to fraction form
    356,504.25/534,751.30 = 86,634.37/x
  3. Step 3: Cross multiply
    356,504.25x = 534,751.30 × 86,634.37
  4. Step 4: Simplify right side
    356,504.25x = 46,327,842,758.91
  5. Step 5: Solve for x
    x = 46,327,842,758.91/356,504.25
  6. Step 6: Final answer
    x = 129,950.32

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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.