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Finding the Fourth Proportional to 215,155.28, 296,924.81 and 119,659.93

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Solution

The fourth proportional to 215,155.28, 296,924.81 and 119,659.93 is: 165,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,155.28 : 296,924.81 = 119,659.93 : x
  2. Step 2: Convert to fraction form
    215,155.28/296,924.81 = 119,659.93/x
  3. Step 3: Cross multiply
    215,155.28x = 296,924.81 × 119,659.93
  4. Step 4: Simplify right side
    215,155.28x = 35,530,000,639.25
  5. Step 5: Solve for x
    x = 35,530,000,639.25/215,155.28
  6. Step 6: Final answer
    x = 165,136.55

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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.