Home / 204,454.70-306,864.30-120,109.40

Finding the Fourth Proportional to 204,454.70, 306,864.30 and 120,109.40

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Solution

The fourth proportional to 204,454.70, 306,864.30 and 120,109.40 is: 180,271.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,454.70 : 306,864.30 = 120,109.40 : x
  2. Step 2: Convert to fraction form
    204,454.70/306,864.30 = 120,109.40/x
  3. Step 3: Cross multiply
    204,454.70x = 306,864.30 × 120,109.40
  4. Step 4: Simplify right side
    204,454.70x = 36,857,286,954.42
  5. Step 5: Solve for x
    x = 36,857,286,954.42/204,454.70
  6. Step 6: Final answer
    x = 180,271.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.