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Finding the Fourth Proportional to 215,550, 297,468.09 and 120,056.67

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Solution

The fourth proportional to 215,550, 297,468.09 and 120,056.67 is: 165,683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,550 : 297,468.09 = 120,056.67 : x
  2. Step 2: Convert to fraction form
    215,550/297,468.09 = 120,056.67/x
  3. Step 3: Cross multiply
    215,550x = 297,468.09 × 120,056.67
  4. Step 4: Simplify right side
    215,550x = 35,713,028,316.66
  5. Step 5: Solve for x
    x = 35,713,028,316.66/215,550
  6. Step 6: Final answer
    x = 165,683.27

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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.