Home / 215,770.32-297,758.70-120,271.32

Finding the Fourth Proportional to 215,770.32, 297,758.70 and 120,271.32

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Solution

The fourth proportional to 215,770.32, 297,758.70 and 120,271.32 is: 165,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,770.32 : 297,758.70 = 120,271.32 : x
  2. Step 2: Convert to fraction form
    215,770.32/297,758.70 = 120,271.32/x
  3. Step 3: Cross multiply
    215,770.32x = 297,758.70 × 120,271.32
  4. Step 4: Simplify right side
    215,770.32x = 35,811,831,890.48
  5. Step 5: Solve for x
    x = 35,811,831,890.48/215,770.32
  6. Step 6: Final answer
    x = 165,972.00

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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.