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Finding the Fourth Proportional to 307,353, 424,150.44 and 173,217

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Solution

The fourth proportional to 307,353, 424,150.44 and 173,217 is: 239,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,353 : 424,150.44 = 173,217 : x
  2. Step 2: Convert to fraction form
    307,353/424,150.44 = 173,217/x
  3. Step 3: Cross multiply
    307,353x = 424,150.44 × 173,217
  4. Step 4: Simplify right side
    307,353x = 73,470,066,765.48
  5. Step 5: Solve for x
    x = 73,470,066,765.48/307,353
  6. Step 6: Final answer
    x = 239,041.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.