Home / 306,332.22-422,676-178,983.22

Finding the Fourth Proportional to 306,332.22, 422,676 and 178,983.22

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Solution

The fourth proportional to 306,332.22, 422,676 and 178,983.22 is: 246,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,332.22 : 422,676 = 178,983.22 : x
  2. Step 2: Convert to fraction form
    306,332.22/422,676 = 178,983.22/x
  3. Step 3: Cross multiply
    306,332.22x = 422,676 × 178,983.22
  4. Step 4: Simplify right side
    306,332.22x = 75,651,911,496.72
  5. Step 5: Solve for x
    x = 75,651,911,496.72/306,332.22
  6. Step 6: Final answer
    x = 246,960.35

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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.