Home / 430,842.68-646,359.96-131,346.54

Finding the Fourth Proportional to 430,842.68, 646,359.96 and 131,346.54

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Solution

The fourth proportional to 430,842.68, 646,359.96 and 131,346.54 is: 197,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,842.68 : 646,359.96 = 131,346.54 : x
  2. Step 2: Convert to fraction form
    430,842.68/646,359.96 = 131,346.54/x
  3. Step 3: Cross multiply
    430,842.68x = 646,359.96 × 131,346.54
  4. Step 4: Simplify right side
    430,842.68x = 84,897,144,340.54
  5. Step 5: Solve for x
    x = 84,897,144,340.54/430,842.68
  6. Step 6: Final answer
    x = 197,049.06

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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.