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Finding the Fourth Proportional to 307,493.28, 424,349.28 and 180,174.24

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Solution

The fourth proportional to 307,493.28, 424,349.28 and 180,174.24 is: 248,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,493.28 : 424,349.28 = 180,174.24 : x
  2. Step 2: Convert to fraction form
    307,493.28/424,349.28 = 180,174.24/x
  3. Step 3: Cross multiply
    307,493.28x = 424,349.28 × 180,174.24
  4. Step 4: Simplify right side
    307,493.28x = 76,456,809,018.55
  5. Step 5: Solve for x
    x = 76,456,809,018.55/307,493.28
  6. Step 6: Final answer
    x = 248,645.46

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1.5x scale

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.