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Finding the Fourth Proportional to 311,565.60, 467,348.40 and 308,800.80

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Solution

The fourth proportional to 311,565.60, 467,348.40 and 308,800.80 is: 463,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,565.60 : 467,348.40 = 308,800.80 : x
  2. Step 2: Convert to fraction form
    311,565.60/467,348.40 = 308,800.80/x
  3. Step 3: Cross multiply
    311,565.60x = 467,348.40 × 308,800.80
  4. Step 4: Simplify right side
    311,565.60x = 144,317,559,798.72
  5. Step 5: Solve for x
    x = 144,317,559,798.72/311,565.60
  6. Step 6: Final answer
    x = 463,201.20

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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.