Home / 220,868.08-304,797-120,263.92

Finding the Fourth Proportional to 220,868.08, 304,797 and 120,263.92

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Solution

The fourth proportional to 220,868.08, 304,797 and 120,263.92 is: 165,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,868.08 : 304,797 = 120,263.92 : x
  2. Step 2: Convert to fraction form
    220,868.08/304,797 = 120,263.92/x
  3. Step 3: Cross multiply
    220,868.08x = 304,797 × 120,263.92
  4. Step 4: Simplify right side
    220,868.08x = 36,656,082,024.24
  5. Step 5: Solve for x
    x = 36,656,082,024.24/220,868.08
  6. Step 6: Final answer
    x = 165,963.69

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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.