Home / 330,217.20-494,742.60-205,412.40

Finding the Fourth Proportional to 330,217.20, 494,742.60 and 205,412.40

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Solution

The fourth proportional to 330,217.20, 494,742.60 and 205,412.40 is: 307,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,217.20 : 494,742.60 = 205,412.40 : x
  2. Step 2: Convert to fraction form
    330,217.20/494,742.60 = 205,412.40/x
  3. Step 3: Cross multiply
    330,217.20x = 494,742.60 × 205,412.40
  4. Step 4: Simplify right side
    330,217.20x = 101,626,264,848.24
  5. Step 5: Solve for x
    x = 101,626,264,848.24/330,217.20
  6. Step 6: Final answer
    x = 307,755.82

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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.