Home / 215,905.06-297,948.40-120,411.87

Finding the Fourth Proportional to 215,905.06, 297,948.40 and 120,411.87

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Solution

The fourth proportional to 215,905.06, 297,948.40 and 120,411.87 is: 166,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,905.06 : 297,948.40 = 120,411.87 : x
  2. Step 2: Convert to fraction form
    215,905.06/297,948.40 = 120,411.87/x
  3. Step 3: Cross multiply
    215,905.06x = 297,948.40 × 120,411.87
  4. Step 4: Simplify right side
    215,905.06x = 35,876,524,007.51
  5. Step 5: Solve for x
    x = 35,876,524,007.51/215,905.06
  6. Step 6: Final answer
    x = 166,168.06

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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.