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Finding the Fourth Proportional to 338,904, 508,356 and 89,586

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Solution

The fourth proportional to 338,904, 508,356 and 89,586 is: 134,379

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,904 : 508,356 = 89,586 : x
  2. Step 2: Convert to fraction form
    338,904/508,356 = 89,586/x
  3. Step 3: Cross multiply
    338,904x = 508,356 × 89,586
  4. Step 4: Simplify right side
    338,904x = 45,541,580,616
  5. Step 5: Solve for x
    x = 45,541,580,616/338,904
  6. Step 6: Final answer
    x = 134,379

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