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Finding the Fourth Proportional to 268,004.60, 401,661.30 and 162,711.80

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Solution

The fourth proportional to 268,004.60, 401,661.30 and 162,711.80 is: 243,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,004.60 : 401,661.30 = 162,711.80 : x
  2. Step 2: Convert to fraction form
    268,004.60/401,661.30 = 162,711.80/x
  3. Step 3: Cross multiply
    268,004.60x = 401,661.30 × 162,711.80
  4. Step 4: Simplify right side
    268,004.60x = 65,355,033,113.34
  5. Step 5: Solve for x
    x = 65,355,033,113.34/268,004.60
  6. Step 6: Final answer
    x = 243,857.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.