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Finding the Fourth Proportional to 444,090, 612,844.20 and 242,886

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Solution

The fourth proportional to 444,090, 612,844.20 and 242,886 is: 335,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,090 : 612,844.20 = 242,886 : x
  2. Step 2: Convert to fraction form
    444,090/612,844.20 = 242,886/x
  3. Step 3: Cross multiply
    444,090x = 612,844.20 × 242,886
  4. Step 4: Simplify right side
    444,090x = 148,851,276,361.20
  5. Step 5: Solve for x
    x = 148,851,276,361.20/444,090
  6. Step 6: Final answer
    x = 335,182.68

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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.