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Finding the Fourth Proportional to 259,867.89, 358,617.66 and 140,635.89

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Solution

The fourth proportional to 259,867.89, 358,617.66 and 140,635.89 is: 194,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,867.89 : 358,617.66 = 140,635.89 : x
  2. Step 2: Convert to fraction form
    259,867.89/358,617.66 = 140,635.89/x
  3. Step 3: Cross multiply
    259,867.89x = 358,617.66 × 140,635.89
  4. Step 4: Simplify right side
    259,867.89x = 50,434,513,783.82
  5. Step 5: Solve for x
    x = 50,434,513,783.82/259,867.89
  6. Step 6: Final answer
    x = 194,077.51

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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.