Home / 397,383.45-548,395.85-216,100.72

Finding the Fourth Proportional to 397,383.45, 548,395.85 and 216,100.72

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Solution

The fourth proportional to 397,383.45, 548,395.85 and 216,100.72 is: 298,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,383.45 : 548,395.85 = 216,100.72 : x
  2. Step 2: Convert to fraction form
    397,383.45/548,395.85 = 216,100.72/x
  3. Step 3: Cross multiply
    397,383.45x = 548,395.85 × 216,100.72
  4. Step 4: Simplify right side
    397,383.45x = 118,508,739,255.76
  5. Step 5: Solve for x
    x = 118,508,739,255.76/397,383.45
  6. Step 6: Final answer
    x = 298,222.64

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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.