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Finding the Fourth Proportional to 215,234.16, 297,019.08 and 119,740.56

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Solution

The fourth proportional to 215,234.16, 297,019.08 and 119,740.56 is: 165,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,234.16 : 297,019.08 = 119,740.56 : x
  2. Step 2: Convert to fraction form
    215,234.16/297,019.08 = 119,740.56/x
  3. Step 3: Cross multiply
    215,234.16x = 297,019.08 × 119,740.56
  4. Step 4: Simplify right side
    215,234.16x = 35,565,230,969.88
  5. Step 5: Solve for x
    x = 35,565,230,969.88/215,234.16
  6. Step 6: Final answer
    x = 165,239.71

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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.