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Finding the Fourth Proportional to 297,154.40, 445,732.64 and 75,538.40

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Solution

The fourth proportional to 297,154.40, 445,732.64 and 75,538.40 is: 113,307.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,154.40 : 445,732.64 = 75,538.40 : x
  2. Step 2: Convert to fraction form
    297,154.40/445,732.64 = 75,538.40/x
  3. Step 3: Cross multiply
    297,154.40x = 445,732.64 × 75,538.40
  4. Step 4: Simplify right side
    297,154.40x = 33,669,930,453.38
  5. Step 5: Solve for x
    x = 33,669,930,453.38/297,154.40
  6. Step 6: Final answer
    x = 113,307.86

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1.5x scale

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.