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Finding the Fourth Proportional to 245,740, 368,568.80 and 68,264.94

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Solution

The fourth proportional to 245,740, 368,568.80 and 68,264.94 is: 102,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,740 : 368,568.80 = 68,264.94 : x
  2. Step 2: Convert to fraction form
    245,740/368,568.80 = 68,264.94/x
  3. Step 3: Cross multiply
    245,740x = 368,568.80 × 68,264.94
  4. Step 4: Simplify right side
    245,740x = 25,160,327,017.87
  5. Step 5: Solve for x
    x = 25,160,327,017.87/245,740
  6. Step 6: Final answer
    x = 102,385.96

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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.