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Finding the Fourth Proportional to 286,682.89, 395,629.98 and 157,626.76

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Solution

The fourth proportional to 286,682.89, 395,629.98 and 157,626.76 is: 217,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,682.89 : 395,629.98 = 157,626.76 : x
  2. Step 2: Convert to fraction form
    286,682.89/395,629.98 = 157,626.76/x
  3. Step 3: Cross multiply
    286,682.89x = 395,629.98 × 157,626.76
  4. Step 4: Simplify right side
    286,682.89x = 62,361,871,906.26
  5. Step 5: Solve for x
    x = 62,361,871,906.26/286,682.89
  6. Step 6: Final answer
    x = 217,529.10

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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.