Home / 329,780.20-493,115.10-245,799.40

Finding the Fourth Proportional to 329,780.20, 493,115.10 and 245,799.40

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Solution

The fourth proportional to 329,780.20, 493,115.10 and 245,799.40 is: 367,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,780.20 : 493,115.10 = 245,799.40 : x
  2. Step 2: Convert to fraction form
    329,780.20/493,115.10 = 245,799.40/x
  3. Step 3: Cross multiply
    329,780.20x = 493,115.10 × 245,799.40
  4. Step 4: Simplify right side
    329,780.20x = 121,207,395,710.94
  5. Step 5: Solve for x
    x = 121,207,395,710.94/329,780.20
  6. Step 6: Final answer
    x = 367,539.94

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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.