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Finding the Fourth Proportional to 215,871.32, 297,904.36 and 119,078.88

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Solution

The fourth proportional to 215,871.32, 297,904.36 and 119,078.88 is: 164,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,871.32 : 297,904.36 = 119,078.88 : x
  2. Step 2: Convert to fraction form
    215,871.32/297,904.36 = 119,078.88/x
  3. Step 3: Cross multiply
    215,871.32x = 297,904.36 × 119,078.88
  4. Step 4: Simplify right side
    215,871.32x = 35,474,117,535.92
  5. Step 5: Solve for x
    x = 35,474,117,535.92/215,871.32
  6. Step 6: Final answer
    x = 164,329.92

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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.