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Finding the Fourth Proportional to 262,486.40, 393,729.60 and 248,662.40

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Solution

The fourth proportional to 262,486.40, 393,729.60 and 248,662.40 is: 372,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,486.40 : 393,729.60 = 248,662.40 : x
  2. Step 2: Convert to fraction form
    262,486.40/393,729.60 = 248,662.40/x
  3. Step 3: Cross multiply
    262,486.40x = 393,729.60 × 248,662.40
  4. Step 4: Simplify right side
    262,486.40x = 97,905,747,287.04
  5. Step 5: Solve for x
    x = 97,905,747,287.04/262,486.40
  6. Step 6: Final answer
    x = 372,993.60

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1.5x scale

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.