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Finding the Fourth Proportional to 311,716.03, 430,168.22 and 168,476.08

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Solution

The fourth proportional to 311,716.03, 430,168.22 and 168,476.08 is: 232,497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,716.03 : 430,168.22 = 168,476.08 : x
  2. Step 2: Convert to fraction form
    311,716.03/430,168.22 = 168,476.08/x
  3. Step 3: Cross multiply
    311,716.03x = 430,168.22 × 168,476.08
  4. Step 4: Simplify right side
    311,716.03x = 72,473,055,446.18
  5. Step 5: Solve for x
    x = 72,473,055,446.18/311,716.03
  6. Step 6: Final answer
    x = 232,497.04

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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.