Home / 307,789.20-424,578.42-180,440.28

Finding the Fourth Proportional to 307,789.20, 424,578.42 and 180,440.28

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Solution

The fourth proportional to 307,789.20, 424,578.42 and 180,440.28 is: 248,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,789.20 : 424,578.42 = 180,440.28 : x
  2. Step 2: Convert to fraction form
    307,789.20/424,578.42 = 180,440.28/x
  3. Step 3: Cross multiply
    307,789.20x = 424,578.42 × 180,440.28
  4. Step 4: Simplify right side
    307,789.20x = 76,611,048,986.76
  5. Step 5: Solve for x
    x = 76,611,048,986.76/307,789.20
  6. Step 6: Final answer
    x = 248,907.53

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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.