Home / 400,982.02-601,607.31-131,122.60

Finding the Fourth Proportional to 400,982.02, 601,607.31 and 131,122.60

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Solution

The fourth proportional to 400,982.02, 601,607.31 and 131,122.60 is: 196,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,982.02 : 601,607.31 = 131,122.60 : x
  2. Step 2: Convert to fraction form
    400,982.02/601,607.31 = 131,122.60/x
  3. Step 3: Cross multiply
    400,982.02x = 601,607.31 × 131,122.60
  4. Step 4: Simplify right side
    400,982.02x = 78,884,314,666.21
  5. Step 5: Solve for x
    x = 78,884,314,666.21/400,982.02
  6. Step 6: Final answer
    x = 196,727.81

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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.