Home / 430,729.04-646,185.80-131,233.77

Finding the Fourth Proportional to 430,729.04, 646,185.80 and 131,233.77

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Solution

The fourth proportional to 430,729.04, 646,185.80 and 131,233.77 is: 196,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,729.04 : 646,185.80 = 131,233.77 : x
  2. Step 2: Convert to fraction form
    430,729.04/646,185.80 = 131,233.77/x
  3. Step 3: Cross multiply
    430,729.04x = 646,185.80 × 131,233.77
  4. Step 4: Simplify right side
    430,729.04x = 84,801,398,982.55
  5. Step 5: Solve for x
    x = 84,801,398,982.55/430,729.04
  6. Step 6: Final answer
    x = 196,878.76

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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.