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Finding the Fourth Proportional to 246,653.60, 369,990.79 and 78,170.22

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Solution

The fourth proportional to 246,653.60, 369,990.79 and 78,170.22 is: 117,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,653.60 : 369,990.79 = 78,170.22 : x
  2. Step 2: Convert to fraction form
    246,653.60/369,990.79 = 78,170.22/x
  3. Step 3: Cross multiply
    246,653.60x = 369,990.79 × 78,170.22
  4. Step 4: Simplify right side
    246,653.60x = 28,922,261,256.85
  5. Step 5: Solve for x
    x = 28,922,261,256.85/246,653.60
  6. Step 6: Final answer
    x = 117,258.62

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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.