Home / 430,604.27-645,999.75-131,077.02

Finding the Fourth Proportional to 430,604.27, 645,999.75 and 131,077.02

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Solution

The fourth proportional to 430,604.27, 645,999.75 and 131,077.02 is: 196,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,604.27 : 645,999.75 = 131,077.02 : x
  2. Step 2: Convert to fraction form
    430,604.27/645,999.75 = 131,077.02/x
  3. Step 3: Cross multiply
    430,604.27x = 645,999.75 × 131,077.02
  4. Step 4: Simplify right side
    430,604.27x = 84,675,722,150.75
  5. Step 5: Solve for x
    x = 84,675,722,150.75/430,604.27
  6. Step 6: Final answer
    x = 196,643.94

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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.