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Finding the Fourth Proportional to 271,888.43, 407,990.63 and 111,980.46

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Solution

The fourth proportional to 271,888.43, 407,990.63 and 111,980.46 is: 168,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,888.43 : 407,990.63 = 111,980.46 : x
  2. Step 2: Convert to fraction form
    271,888.43/407,990.63 = 111,980.46/x
  3. Step 3: Cross multiply
    271,888.43x = 407,990.63 × 111,980.46
  4. Step 4: Simplify right side
    271,888.43x = 45,686,977,863.19
  5. Step 5: Solve for x
    x = 45,686,977,863.19/271,888.43
  6. Step 6: Final answer
    x = 168,035.76

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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.