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Finding the Fourth Proportional to 140,940, 211,410 and 42,444

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Solution

The fourth proportional to 140,940, 211,410 and 42,444 is: 63,666

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,940 : 211,410 = 42,444 : x
  2. Step 2: Convert to fraction form
    140,940/211,410 = 42,444/x
  3. Step 3: Cross multiply
    140,940x = 211,410 × 42,444
  4. Step 4: Simplify right side
    140,940x = 8,973,086,040
  5. Step 5: Solve for x
    x = 8,973,086,040/140,940
  6. Step 6: Final answer
    x = 63,666

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