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Finding the Fourth Proportional to 251,965, 377,986.38 and 94,215.88

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Solution

The fourth proportional to 251,965, 377,986.38 and 94,215.88 is: 141,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,965 : 377,986.38 = 94,215.88 : x
  2. Step 2: Convert to fraction form
    251,965/377,986.38 = 94,215.88/x
  3. Step 3: Cross multiply
    251,965x = 377,986.38 × 94,215.88
  4. Step 4: Simplify right side
    251,965x = 35,612,319,419.71
  5. Step 5: Solve for x
    x = 35,612,319,419.71/251,965
  6. Step 6: Final answer
    x = 141,338.36

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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.