Home / 352,712.21-486,882.43-245,344.55

Finding the Fourth Proportional to 352,712.21, 486,882.43 and 245,344.55

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Solution

The fourth proportional to 352,712.21, 486,882.43 and 245,344.55 is: 338,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,712.21 : 486,882.43 = 245,344.55 : x
  2. Step 2: Convert to fraction form
    352,712.21/486,882.43 = 245,344.55/x
  3. Step 3: Cross multiply
    352,712.21x = 486,882.43 × 245,344.55
  4. Step 4: Simplify right side
    352,712.21x = 119,453,947,643.48
  5. Step 5: Solve for x
    x = 119,453,947,643.48/352,712.21
  6. Step 6: Final answer
    x = 338,672.57

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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.