Home / 214,642.68-321,964-74,401.28

Finding the Fourth Proportional to 214,642.68, 321,964 and 74,401.28

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Solution

The fourth proportional to 214,642.68, 321,964 and 74,401.28 is: 111,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,642.68 : 321,964 = 74,401.28 : x
  2. Step 2: Convert to fraction form
    214,642.68/321,964 = 74,401.28/x
  3. Step 3: Cross multiply
    214,642.68x = 321,964 × 74,401.28
  4. Step 4: Simplify right side
    214,642.68x = 23,954,533,713.92
  5. Step 5: Solve for x
    x = 23,954,533,713.92/214,642.68
  6. Step 6: Final answer
    x = 111,601.91

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1.5x scale

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.