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Finding the Fourth Proportional to 199,494.56, 298,989.52 and 87,145.12

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Solution

The fourth proportional to 199,494.56, 298,989.52 and 87,145.12 is: 130,607.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,494.56 : 298,989.52 = 87,145.12 : x
  2. Step 2: Convert to fraction form
    199,494.56/298,989.52 = 87,145.12/x
  3. Step 3: Cross multiply
    199,494.56x = 298,989.52 × 87,145.12
  4. Step 4: Simplify right side
    199,494.56x = 26,055,477,599.14
  5. Step 5: Solve for x
    x = 26,055,477,599.14/199,494.56
  6. Step 6: Final answer
    x = 130,607.46

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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.