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Finding the Fourth Proportional to 330,846.80, 496,270.20 and 206,430.80

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Solution

The fourth proportional to 330,846.80, 496,270.20 and 206,430.80 is: 309,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,846.80 : 496,270.20 = 206,430.80 : x
  2. Step 2: Convert to fraction form
    330,846.80/496,270.20 = 206,430.80/x
  3. Step 3: Cross multiply
    330,846.80x = 496,270.20 × 206,430.80
  4. Step 4: Simplify right side
    330,846.80x = 102,445,454,402.16
  5. Step 5: Solve for x
    x = 102,445,454,402.16/330,846.80
  6. Step 6: Final answer
    x = 309,646.20

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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.