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Finding the Fourth Proportional to 245,306.57, 368,102.61 and 103,141.54

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Solution

The fourth proportional to 245,306.57, 368,102.61 and 103,141.54 is: 154,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,306.57 : 368,102.61 = 103,141.54 : x
  2. Step 2: Convert to fraction form
    245,306.57/368,102.61 = 103,141.54/x
  3. Step 3: Cross multiply
    245,306.57x = 368,102.61 × 103,141.54
  4. Step 4: Simplify right side
    245,306.57x = 37,966,670,073.42
  5. Step 5: Solve for x
    x = 37,966,670,073.42/245,306.57
  6. Step 6: Final answer
    x = 154,772.34

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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.