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Finding the Fourth Proportional to 245,428.80, 367,624.80 and 203,956.80

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Solution

The fourth proportional to 245,428.80, 367,624.80 and 203,956.80 is: 305,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,428.80 : 367,624.80 = 203,956.80 : x
  2. Step 2: Convert to fraction form
    245,428.80/367,624.80 = 203,956.80/x
  3. Step 3: Cross multiply
    245,428.80x = 367,624.80 × 203,956.80
  4. Step 4: Simplify right side
    245,428.80x = 74,979,577,808.64
  5. Step 5: Solve for x
    x = 74,979,577,808.64/245,428.80
  6. Step 6: Final answer
    x = 305,504.40

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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.