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Finding the Fourth Proportional to 400,806.08, 601,238.28 and 134,564.34

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Solution

The fourth proportional to 400,806.08, 601,238.28 and 134,564.34 is: 201,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,806.08 : 601,238.28 = 134,564.34 : x
  2. Step 2: Convert to fraction form
    400,806.08/601,238.28 = 134,564.34/x
  3. Step 3: Cross multiply
    400,806.08x = 601,238.28 × 134,564.34
  4. Step 4: Simplify right side
    400,806.08x = 80,905,232,330.94
  5. Step 5: Solve for x
    x = 80,905,232,330.94/400,806.08
  6. Step 6: Final answer
    x = 201,856.30

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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.