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Finding the Fourth Proportional to 368,954.92, 553,377.30 and 102,687.67

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Solution

The fourth proportional to 368,954.92, 553,377.30 and 102,687.67 is: 154,016.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,954.92 : 553,377.30 = 102,687.67 : x
  2. Step 2: Convert to fraction form
    368,954.92/553,377.30 = 102,687.67/x
  3. Step 3: Cross multiply
    368,954.92x = 553,377.30 × 102,687.67
  4. Step 4: Simplify right side
    368,954.92x = 56,825,025,567.89
  5. Step 5: Solve for x
    x = 56,825,025,567.89/368,954.92
  6. Step 6: Final answer
    x = 154,016.18

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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.