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Finding the Fourth Proportional to 259,519.82, 358,137.87 and 140,287.82

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Solution

The fourth proportional to 259,519.82, 358,137.87 and 140,287.82 is: 193,597.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,519.82 : 358,137.87 = 140,287.82 : x
  2. Step 2: Convert to fraction form
    259,519.82/358,137.87 = 140,287.82/x
  3. Step 3: Cross multiply
    259,519.82x = 358,137.87 × 140,287.82
  4. Step 4: Simplify right side
    259,519.82x = 50,242,381,041.74
  5. Step 5: Solve for x
    x = 50,242,381,041.74/259,519.82
  6. Step 6: Final answer
    x = 193,597.47

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1.5x scale

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.