Home / 306,341.22-422,688.39-178,992.18

Finding the Fourth Proportional to 306,341.22, 422,688.39 and 178,992.18

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Solution

The fourth proportional to 306,341.22, 422,688.39 and 178,992.18 is: 246,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,341.22 : 422,688.39 = 178,992.18 : x
  2. Step 2: Convert to fraction form
    306,341.22/422,688.39 = 178,992.18/x
  3. Step 3: Cross multiply
    306,341.22x = 422,688.39 × 178,992.18
  4. Step 4: Simplify right side
    306,341.22x = 75,657,916,386.79
  5. Step 5: Solve for x
    x = 75,657,916,386.79/306,341.22
  6. Step 6: Final answer
    x = 246,972.69

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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.