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Finding the Fourth Proportional to 150,351.39, 207,485.01 and 82,370.82

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Solution

The fourth proportional to 150,351.39, 207,485.01 and 82,370.82 is: 113,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,351.39 : 207,485.01 = 82,370.82 : x
  2. Step 2: Convert to fraction form
    150,351.39/207,485.01 = 82,370.82/x
  3. Step 3: Cross multiply
    150,351.39x = 207,485.01 × 82,370.82
  4. Step 4: Simplify right side
    150,351.39x = 17,090,710,411.41
  5. Step 5: Solve for x
    x = 17,090,710,411.41/150,351.39
  6. Step 6: Final answer
    x = 113,671.78

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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.