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Finding the Fourth Proportional to 297,287.80, 445,931.70 and 264,628.60

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Solution

The fourth proportional to 297,287.80, 445,931.70 and 264,628.60 is: 396,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,287.80 : 445,931.70 = 264,628.60 : x
  2. Step 2: Convert to fraction form
    297,287.80/445,931.70 = 264,628.60/x
  3. Step 3: Cross multiply
    297,287.80x = 445,931.70 × 264,628.60
  4. Step 4: Simplify right side
    297,287.80x = 118,006,281,466.62
  5. Step 5: Solve for x
    x = 118,006,281,466.62/297,287.80
  6. Step 6: Final answer
    x = 396,942.90

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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.