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Finding the Fourth Proportional to 401,007.89, 601,511.84 and 134,768.41

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Solution

The fourth proportional to 401,007.89, 601,511.84 and 134,768.41 is: 202,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,007.89 : 601,511.84 = 134,768.41 : x
  2. Step 2: Convert to fraction form
    401,007.89/601,511.84 = 134,768.41/x
  3. Step 3: Cross multiply
    401,007.89x = 601,511.84 × 134,768.41
  4. Step 4: Simplify right side
    401,007.89x = 81,064,794,856.40
  5. Step 5: Solve for x
    x = 81,064,794,856.40/401,007.89
  6. Step 6: Final answer
    x = 202,152.62

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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.