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Finding the Fourth Proportional to 248,046, 372,069 and 72,942

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Solution

The fourth proportional to 248,046, 372,069 and 72,942 is: 109,413

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,046 : 372,069 = 72,942 : x
  2. Step 2: Convert to fraction form
    248,046/372,069 = 72,942/x
  3. Step 3: Cross multiply
    248,046x = 372,069 × 72,942
  4. Step 4: Simplify right side
    248,046x = 27,139,456,998
  5. Step 5: Solve for x
    x = 27,139,456,998/248,046
  6. Step 6: Final answer
    x = 109,413

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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.