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Finding the Fourth Proportional to 493,450.60, 740,200.20 and 257,254.60

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Solution

The fourth proportional to 493,450.60, 740,200.20 and 257,254.60 is: 385,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,450.60 : 740,200.20 = 257,254.60 : x
  2. Step 2: Convert to fraction form
    493,450.60/740,200.20 = 257,254.60/x
  3. Step 3: Cross multiply
    493,450.60x = 740,200.20 × 257,254.60
  4. Step 4: Simplify right side
    493,450.60x = 190,419,906,370.92
  5. Step 5: Solve for x
    x = 190,419,906,370.92/493,450.60
  6. Step 6: Final answer
    x = 385,894.57

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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.