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Finding the Fourth Proportional to 400,850.40, 601,615.80 and 164,362.80

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Solution

The fourth proportional to 400,850.40, 601,615.80 and 164,362.80 is: 246,683.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,850.40 : 601,615.80 = 164,362.80 : x
  2. Step 2: Convert to fraction form
    400,850.40/601,615.80 = 164,362.80/x
  3. Step 3: Cross multiply
    400,850.40x = 601,615.80 × 164,362.80
  4. Step 4: Simplify right side
    400,850.40x = 98,883,257,412.24
  5. Step 5: Solve for x
    x = 98,883,257,412.24/400,850.40
  6. Step 6: Final answer
    x = 246,683.69

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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.