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Finding the Fourth Proportional to 298,355.07, 411,738.72 and 162,397.79

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Solution

The fourth proportional to 298,355.07, 411,738.72 and 162,397.79 is: 224,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,355.07 : 411,738.72 = 162,397.79 : x
  2. Step 2: Convert to fraction form
    298,355.07/411,738.72 = 162,397.79/x
  3. Step 3: Cross multiply
    298,355.07x = 411,738.72 × 162,397.79
  4. Step 4: Simplify right side
    298,355.07x = 66,865,458,185.43
  5. Step 5: Solve for x
    x = 66,865,458,185.43/298,355.07
  6. Step 6: Final answer
    x = 224,113.70

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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.