Home / 431,040.56-646,599.79-164,803.38

Finding the Fourth Proportional to 431,040.56, 646,599.79 and 164,803.38

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Solution

The fourth proportional to 431,040.56, 646,599.79 and 164,803.38 is: 247,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,040.56 : 646,599.79 = 164,803.38 : x
  2. Step 2: Convert to fraction form
    431,040.56/646,599.79 = 164,803.38/x
  3. Step 3: Cross multiply
    431,040.56x = 646,599.79 × 164,803.38
  4. Step 4: Simplify right side
    431,040.56x = 106,561,831,311.30
  5. Step 5: Solve for x
    x = 106,561,831,311.30/431,040.56
  6. Step 6: Final answer
    x = 247,219.96

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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.