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Finding the Fourth Proportional to 215,328.87, 297,150.94 and 119,835.54

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Solution

The fourth proportional to 215,328.87, 297,150.94 and 119,835.54 is: 165,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,328.87 : 297,150.94 = 119,835.54 : x
  2. Step 2: Convert to fraction form
    215,328.87/297,150.94 = 119,835.54/x
  3. Step 3: Cross multiply
    215,328.87x = 297,150.94 × 119,835.54
  4. Step 4: Simplify right side
    215,328.87x = 35,609,243,356.41
  5. Step 5: Solve for x
    x = 35,609,243,356.41/215,328.87
  6. Step 6: Final answer
    x = 165,371.43

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1.5x scale

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.