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Finding the Fourth Proportional to 299,392.12, 448,956.42 and 112,272.40

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Solution

The fourth proportional to 299,392.12, 448,956.42 and 112,272.40 is: 168,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,392.12 : 448,956.42 = 112,272.40 : x
  2. Step 2: Convert to fraction form
    299,392.12/448,956.42 = 112,272.40/x
  3. Step 3: Cross multiply
    299,392.12x = 448,956.42 × 112,272.40
  4. Step 4: Simplify right side
    299,392.12x = 50,405,414,768.81
  5. Step 5: Solve for x
    x = 50,405,414,768.81/299,392.12
  6. Step 6: Final answer
    x = 168,359.19

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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.