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Finding the Fourth Proportional to 330,858.60, 496,287.90 and 173,135.40

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Solution

The fourth proportional to 330,858.60, 496,287.90 and 173,135.40 is: 259,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,858.60 : 496,287.90 = 173,135.40 : x
  2. Step 2: Convert to fraction form
    330,858.60/496,287.90 = 173,135.40/x
  3. Step 3: Cross multiply
    330,858.60x = 496,287.90 × 173,135.40
  4. Step 4: Simplify right side
    330,858.60x = 85,925,004,081.66
  5. Step 5: Solve for x
    x = 85,925,004,081.66/330,858.60
  6. Step 6: Final answer
    x = 259,703.10

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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.