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Finding the Fourth Proportional to 311,956.58, 430,500.07 and 168,716.62

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Solution

The fourth proportional to 311,956.58, 430,500.07 and 168,716.62 is: 232,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,956.58 : 430,500.07 = 168,716.62 : x
  2. Step 2: Convert to fraction form
    311,956.58/430,500.07 = 168,716.62/x
  3. Step 3: Cross multiply
    311,956.58x = 430,500.07 × 168,716.62
  4. Step 4: Simplify right side
    311,956.58x = 72,632,516,720.16
  5. Step 5: Solve for x
    x = 72,632,516,720.16/311,956.58
  6. Step 6: Final answer
    x = 232,828.93

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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.