Home / 414,541.20-621,811.80-148,285.56

Finding the Fourth Proportional to 414,541.20, 621,811.80 and 148,285.56

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Solution

The fourth proportional to 414,541.20, 621,811.80 and 148,285.56 is: 222,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,541.20 : 621,811.80 = 148,285.56 : x
  2. Step 2: Convert to fraction form
    414,541.20/621,811.80 = 148,285.56/x
  3. Step 3: Cross multiply
    414,541.20x = 621,811.80 × 148,285.56
  4. Step 4: Simplify right side
    414,541.20x = 92,205,710,977.61
  5. Step 5: Solve for x
    x = 92,205,710,977.61/414,541.20
  6. Step 6: Final answer
    x = 222,428.34

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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.