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Finding the Fourth Proportional to 311,510.70, 429,884.46 and 168,270.68

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Solution

The fourth proportional to 311,510.70, 429,884.46 and 168,270.68 is: 232,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,510.70 : 429,884.46 = 168,270.68 : x
  2. Step 2: Convert to fraction form
    311,510.70/429,884.46 = 168,270.68/x
  3. Step 3: Cross multiply
    311,510.70x = 429,884.46 × 168,270.68
  4. Step 4: Simplify right side
    311,510.70x = 72,336,950,405.63
  5. Step 5: Solve for x
    x = 72,336,950,405.63/311,510.70
  6. Step 6: Final answer
    x = 232,213.37

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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.