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Finding the Fourth Proportional to 247,365.37, 371,017.81 and 105,267.88

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Solution

The fourth proportional to 247,365.37, 371,017.81 and 105,267.88 is: 157,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,365.37 : 371,017.81 = 105,267.88 : x
  2. Step 2: Convert to fraction form
    247,365.37/371,017.81 = 105,267.88/x
  3. Step 3: Cross multiply
    247,365.37x = 371,017.81 × 105,267.88
  4. Step 4: Simplify right side
    247,365.37x = 39,056,258,300.94
  5. Step 5: Solve for x
    x = 39,056,258,300.94/247,365.37
  6. Step 6: Final answer
    x = 157,888.95

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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.