Home / 215,772.53-297,755.18-120,260.77

Finding the Fourth Proportional to 215,772.53, 297,755.18 and 120,260.77

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Solution

The fourth proportional to 215,772.53, 297,755.18 and 120,260.77 is: 165,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,772.53 : 297,755.18 = 120,260.77 : x
  2. Step 2: Convert to fraction form
    215,772.53/297,755.18 = 120,260.77/x
  3. Step 3: Cross multiply
    215,772.53x = 297,755.18 × 120,260.77
  4. Step 4: Simplify right side
    215,772.53x = 35,808,265,729.51
  5. Step 5: Solve for x
    x = 35,808,265,729.51/215,772.53
  6. Step 6: Final answer
    x = 165,953.78

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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.