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Finding the Fourth Proportional to 228,718.92, 343,005.66 and 213,792.96

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Solution

The fourth proportional to 228,718.92, 343,005.66 and 213,792.96 is: 320,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,718.92 : 343,005.66 = 213,792.96 : x
  2. Step 2: Convert to fraction form
    228,718.92/343,005.66 = 213,792.96/x
  3. Step 3: Cross multiply
    228,718.92x = 343,005.66 × 213,792.96
  4. Step 4: Simplify right side
    228,718.92x = 73,332,195,348.15
  5. Step 5: Solve for x
    x = 73,332,195,348.15/228,718.92
  6. Step 6: Final answer
    x = 320,621.47

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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.