Home / 414,523.40-621,938.70-165,384.20

Finding the Fourth Proportional to 414,523.40, 621,938.70 and 165,384.20

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Solution

The fourth proportional to 414,523.40, 621,938.70 and 165,384.20 is: 248,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,523.40 : 621,938.70 = 165,384.20 : x
  2. Step 2: Convert to fraction form
    414,523.40/621,938.70 = 165,384.20/x
  3. Step 3: Cross multiply
    414,523.40x = 621,938.70 × 165,384.20
  4. Step 4: Simplify right side
    414,523.40x = 102,858,834,348.54
  5. Step 5: Solve for x
    x = 102,858,834,348.54/414,523.40
  6. Step 6: Final answer
    x = 248,137.58

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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.