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Finding the Fourth Proportional to 178,409.52, 246,063.42 and 151,640.64

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Solution

The fourth proportional to 178,409.52, 246,063.42 and 151,640.64 is: 209,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,409.52 : 246,063.42 = 151,640.64 : x
  2. Step 2: Convert to fraction form
    178,409.52/246,063.42 = 151,640.64/x
  3. Step 3: Cross multiply
    178,409.52x = 246,063.42 × 151,640.64
  4. Step 4: Simplify right side
    178,409.52x = 37,313,214,489.39
  5. Step 5: Solve for x
    x = 37,313,214,489.39/178,409.52
  6. Step 6: Final answer
    x = 209,143.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.