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Finding the Fourth Proportional to 298,901.40, 412,478.30 and 162,936.60

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Solution

The fourth proportional to 298,901.40, 412,478.30 and 162,936.60 is: 224,849.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,901.40 : 412,478.30 = 162,936.60 : x
  2. Step 2: Convert to fraction form
    298,901.40/412,478.30 = 162,936.60/x
  3. Step 3: Cross multiply
    298,901.40x = 412,478.30 × 162,936.60
  4. Step 4: Simplify right side
    298,901.40x = 67,207,811,775.78
  5. Step 5: Solve for x
    x = 67,207,811,775.78/298,901.40
  6. Step 6: Final answer
    x = 224,849.44

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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.