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Finding the Fourth Proportional to 298,008.07, 411,253.07 and 162,043.49

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Solution

The fourth proportional to 298,008.07, 411,253.07 and 162,043.49 is: 223,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,008.07 : 411,253.07 = 162,043.49 : x
  2. Step 2: Convert to fraction form
    298,008.07/411,253.07 = 162,043.49/x
  3. Step 3: Cross multiply
    298,008.07x = 411,253.07 × 162,043.49
  4. Step 4: Simplify right side
    298,008.07x = 66,640,882,953.93
  5. Step 5: Solve for x
    x = 66,640,882,953.93/298,008.07
  6. Step 6: Final answer
    x = 223,621.07

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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.