Home / 215,705.05-297,675.89-120,208.48

Finding the Fourth Proportional to 215,705.05, 297,675.89 and 120,208.48

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Solution

The fourth proportional to 215,705.05, 297,675.89 and 120,208.48 is: 165,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,705.05 : 297,675.89 = 120,208.48 : x
  2. Step 2: Convert to fraction form
    215,705.05/297,675.89 = 120,208.48/x
  3. Step 3: Cross multiply
    215,705.05x = 297,675.89 × 120,208.48
  4. Step 4: Simplify right side
    215,705.05x = 35,783,166,269.55
  5. Step 5: Solve for x
    x = 35,783,166,269.55/215,705.05
  6. Step 6: Final answer
    x = 165,889.33

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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.