Home / 397,972.82-549,197.34-216,682.68

Finding the Fourth Proportional to 397,972.82, 549,197.34 and 216,682.68

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Solution

The fourth proportional to 397,972.82, 549,197.34 and 216,682.68 is: 299,019.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,972.82 : 549,197.34 = 216,682.68 : x
  2. Step 2: Convert to fraction form
    397,972.82/549,197.34 = 216,682.68/x
  3. Step 3: Cross multiply
    397,972.82x = 549,197.34 × 216,682.68
  4. Step 4: Simplify right side
    397,972.82x = 119,001,551,480.07
  5. Step 5: Solve for x
    x = 119,001,551,480.07/397,972.82
  6. Step 6: Final answer
    x = 299,019.29

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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.