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Finding the Fourth Proportional to 215,662.32, 297,609.99 and 120,166.98

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Solution

The fourth proportional to 215,662.32, 297,609.99 and 120,166.98 is: 165,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,662.32 : 297,609.99 = 120,166.98 : x
  2. Step 2: Convert to fraction form
    215,662.32/297,609.99 = 120,166.98/x
  3. Step 3: Cross multiply
    215,662.32x = 297,609.99 × 120,166.98
  4. Step 4: Simplify right side
    215,662.32x = 35,762,893,716.13
  5. Step 5: Solve for x
    x = 35,762,893,716.13/215,662.32
  6. Step 6: Final answer
    x = 165,828.20

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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.