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Finding the Fourth Proportional to 291,704.40, 437,556.60 and 247,964.40

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Solution

The fourth proportional to 291,704.40, 437,556.60 and 247,964.40 is: 371,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,704.40 : 437,556.60 = 247,964.40 : x
  2. Step 2: Convert to fraction form
    291,704.40/437,556.60 = 247,964.40/x
  3. Step 3: Cross multiply
    291,704.40x = 437,556.60 × 247,964.40
  4. Step 4: Simplify right side
    291,704.40x = 108,498,459,785.04
  5. Step 5: Solve for x
    x = 108,498,459,785.04/291,704.40
  6. Step 6: Final answer
    x = 371,946.60

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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.