Home / 272,741.36-408,660.96-139,438.25

Finding the Fourth Proportional to 272,741.36, 408,660.96 and 139,438.25

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Solution

The fourth proportional to 272,741.36, 408,660.96 and 139,438.25 is: 208,926.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,741.36 : 408,660.96 = 139,438.25 : x
  2. Step 2: Convert to fraction form
    272,741.36/408,660.96 = 139,438.25/x
  3. Step 3: Cross multiply
    272,741.36x = 408,660.96 × 139,438.25
  4. Step 4: Simplify right side
    272,741.36x = 56,982,967,062.42
  5. Step 5: Solve for x
    x = 56,982,967,062.42/272,741.36
  6. Step 6: Final answer
    x = 208,926.76

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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.