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Finding the Fourth Proportional to 311,037.20, 466,555.80 and 248,829.20

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Solution

The fourth proportional to 311,037.20, 466,555.80 and 248,829.20 is: 373,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,037.20 : 466,555.80 = 248,829.20 : x
  2. Step 2: Convert to fraction form
    311,037.20/466,555.80 = 248,829.20/x
  3. Step 3: Cross multiply
    311,037.20x = 466,555.80 × 248,829.20
  4. Step 4: Simplify right side
    311,037.20x = 116,092,706,469.36
  5. Step 5: Solve for x
    x = 116,092,706,469.36/311,037.20
  6. Step 6: Final answer
    x = 373,243.80

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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.