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Finding the Fourth Proportional to 311,208.80, 466,813.20 and 306,024.80

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Solution

The fourth proportional to 311,208.80, 466,813.20 and 306,024.80 is: 459,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,208.80 : 466,813.20 = 306,024.80 : x
  2. Step 2: Convert to fraction form
    311,208.80/466,813.20 = 306,024.80/x
  3. Step 3: Cross multiply
    311,208.80x = 466,813.20 × 306,024.80
  4. Step 4: Simplify right side
    311,208.80x = 142,856,416,167.36
  5. Step 5: Solve for x
    x = 142,856,416,167.36/311,208.80
  6. Step 6: Final answer
    x = 459,037.20

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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.