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Finding the Fourth Proportional to 505,354.35, 757,521.23 and 252,245.55

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Solution

The fourth proportional to 505,354.35, 757,521.23 and 252,245.55 is: 378,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,354.35 : 757,521.23 = 252,245.55 : x
  2. Step 2: Convert to fraction form
    505,354.35/757,521.23 = 252,245.55/x
  3. Step 3: Cross multiply
    505,354.35x = 757,521.23 × 252,245.55
  4. Step 4: Simplify right side
    505,354.35x = 191,081,358,036.80
  5. Step 5: Solve for x
    x = 191,081,358,036.80/505,354.35
  6. Step 6: Final answer
    x = 378,113.61

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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.