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Finding the Fourth Proportional to 215,330.87, 297,153.71 and 119,837.54

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Solution

The fourth proportional to 215,330.87, 297,153.71 and 119,837.54 is: 165,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,330.87 : 297,153.71 = 119,837.54 : x
  2. Step 2: Convert to fraction form
    215,330.87/297,153.71 = 119,837.54/x
  3. Step 3: Cross multiply
    215,330.87x = 297,153.71 × 119,837.54
  4. Step 4: Simplify right side
    215,330.87x = 35,610,169,751.97
  5. Step 5: Solve for x
    x = 35,610,169,751.97/215,330.87
  6. Step 6: Final answer
    x = 165,374.20

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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.