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Finding the Fourth Proportional to 215,653.56, 297,606.87 and 120,166.08

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Solution

The fourth proportional to 215,653.56, 297,606.87 and 120,166.08 is: 165,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,653.56 : 297,606.87 = 120,166.08 : x
  2. Step 2: Convert to fraction form
    215,653.56/297,606.87 = 120,166.08/x
  3. Step 3: Cross multiply
    215,653.56x = 297,606.87 × 120,166.08
  4. Step 4: Simplify right side
    215,653.56x = 35,762,250,948.97
  5. Step 5: Solve for x
    x = 35,762,250,948.97/215,653.56
  6. Step 6: Final answer
    x = 165,831.95

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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.