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Finding the Fourth Proportional to 298,771.48, 412,299.32 and 162,806.40

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Solution

The fourth proportional to 298,771.48, 412,299.32 and 162,806.40 is: 224,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,771.48 : 412,299.32 = 162,806.40 : x
  2. Step 2: Convert to fraction form
    298,771.48/412,299.32 = 162,806.40/x
  3. Step 3: Cross multiply
    298,771.48x = 412,299.32 × 162,806.40
  4. Step 4: Simplify right side
    298,771.48x = 67,124,968,011.65
  5. Step 5: Solve for x
    x = 67,124,968,011.65/298,771.48
  6. Step 6: Final answer
    x = 224,669.93

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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.