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Finding the Fourth Proportional to 400,235.07, 600,384.15 and 133,996.71

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Solution

The fourth proportional to 400,235.07, 600,384.15 and 133,996.71 is: 201,005.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,235.07 : 600,384.15 = 133,996.71 : x
  2. Step 2: Convert to fraction form
    400,235.07/600,384.15 = 133,996.71/x
  3. Step 3: Cross multiply
    400,235.07x = 600,384.15 × 133,996.71
  4. Step 4: Simplify right side
    400,235.07x = 80,449,500,836.15
  5. Step 5: Solve for x
    x = 80,449,500,836.15/400,235.07
  6. Step 6: Final answer
    x = 201,005.63

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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.