Home / 414,126.80-621,321.24-147,881.36

Finding the Fourth Proportional to 414,126.80, 621,321.24 and 147,881.36

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Solution

The fourth proportional to 414,126.80, 621,321.24 and 147,881.36 is: 221,868.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,126.80 : 621,321.24 = 147,881.36 : x
  2. Step 2: Convert to fraction form
    414,126.80/621,321.24 = 147,881.36/x
  3. Step 3: Cross multiply
    414,126.80x = 621,321.24 × 147,881.36
  4. Step 4: Simplify right side
    414,126.80x = 91,881,829,968.09
  5. Step 5: Solve for x
    x = 91,881,829,968.09/414,126.80
  6. Step 6: Final answer
    x = 221,868.83

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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.