Home / 430,720.52-646,173.09-131,225.24

Finding the Fourth Proportional to 430,720.52, 646,173.09 and 131,225.24

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Solution

The fourth proportional to 430,720.52, 646,173.09 and 131,225.24 is: 196,865.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,720.52 : 646,173.09 = 131,225.24 : x
  2. Step 2: Convert to fraction form
    430,720.52/646,173.09 = 131,225.24/x
  3. Step 3: Cross multiply
    430,720.52x = 646,173.09 × 131,225.24
  4. Step 4: Simplify right side
    430,720.52x = 84,794,215,585.93
  5. Step 5: Solve for x
    x = 84,794,215,585.93/430,720.52
  6. Step 6: Final answer
    x = 196,865.98

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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.