Home / 306,330.21-422,673.24-178,981.20

Finding the Fourth Proportional to 306,330.21, 422,673.24 and 178,981.20

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Solution

The fourth proportional to 306,330.21, 422,673.24 and 178,981.20 is: 246,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,330.21 : 422,673.24 = 178,981.20 : x
  2. Step 2: Convert to fraction form
    306,330.21/422,673.24 = 178,981.20/x
  3. Step 3: Cross multiply
    306,330.21x = 422,673.24 × 178,981.20
  4. Step 4: Simplify right side
    306,330.21x = 75,650,563,703.09
  5. Step 5: Solve for x
    x = 75,650,563,703.09/306,330.21
  6. Step 6: Final answer
    x = 246,957.57

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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.