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Finding the Fourth Proportional to 245,759.86, 368,049.30 and 140,258.98

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Solution

The fourth proportional to 245,759.86, 368,049.30 and 140,258.98 is: 210,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,759.86 : 368,049.30 = 140,258.98 : x
  2. Step 2: Convert to fraction form
    245,759.86/368,049.30 = 140,258.98/x
  3. Step 3: Cross multiply
    245,759.86x = 368,049.30 × 140,258.98
  4. Step 4: Simplify right side
    245,759.86x = 51,622,219,407.71
  5. Step 5: Solve for x
    x = 51,622,219,407.71/245,759.86
  6. Step 6: Final answer
    x = 210,051.47

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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.