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Finding the Fourth Proportional to 397,881.54, 549,074.97 and 216,603.54

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Solution

The fourth proportional to 397,881.54, 549,074.97 and 216,603.54 is: 298,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,881.54 : 549,074.97 = 216,603.54 : x
  2. Step 2: Convert to fraction form
    397,881.54/549,074.97 = 216,603.54/x
  3. Step 3: Cross multiply
    397,881.54x = 549,074.97 × 216,603.54
  4. Step 4: Simplify right side
    397,881.54x = 118,931,582,227.39
  5. Step 5: Solve for x
    x = 118,931,582,227.39/397,881.54
  6. Step 6: Final answer
    x = 298,912.04

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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.