Home / 431,071.23-646,606.85-131,553.34

Finding the Fourth Proportional to 431,071.23, 646,606.85 and 131,553.34

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Solution

The fourth proportional to 431,071.23, 646,606.85 and 131,553.34 is: 197,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,071.23 : 646,606.85 = 131,553.34 : x
  2. Step 2: Convert to fraction form
    431,071.23/646,606.85 = 131,553.34/x
  3. Step 3: Cross multiply
    431,071.23x = 646,606.85 × 131,553.34
  4. Step 4: Simplify right side
    431,071.23x = 85,063,290,126.61
  5. Step 5: Solve for x
    x = 85,063,290,126.61/431,071.23
  6. Step 6: Final answer
    x = 197,330.01

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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.