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Finding the Fourth Proportional to 290,753.59, 436,130.48 and 119,972.81

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Solution

The fourth proportional to 290,753.59, 436,130.48 and 119,972.81 is: 179,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,753.59 : 436,130.48 = 119,972.81 : x
  2. Step 2: Convert to fraction form
    290,753.59/436,130.48 = 119,972.81/x
  3. Step 3: Cross multiply
    290,753.59x = 436,130.48 × 119,972.81
  4. Step 4: Simplify right side
    290,753.59x = 52,323,796,431.73
  5. Step 5: Solve for x
    x = 52,323,796,431.73/290,753.59
  6. Step 6: Final answer
    x = 179,959.25

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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.