Home / 430,656.94-646,018.35-131,163.04

Finding the Fourth Proportional to 430,656.94, 646,018.35 and 131,163.04

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Solution

The fourth proportional to 430,656.94, 646,018.35 and 131,163.04 is: 196,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,656.94 : 646,018.35 = 131,163.04 : x
  2. Step 2: Convert to fraction form
    430,656.94/646,018.35 = 131,163.04/x
  3. Step 3: Cross multiply
    430,656.94x = 646,018.35 × 131,163.04
  4. Step 4: Simplify right side
    430,656.94x = 84,733,730,681.78
  5. Step 5: Solve for x
    x = 84,733,730,681.78/430,656.94
  6. Step 6: Final answer
    x = 196,754.59

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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.