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Finding the Fourth Proportional to 247,503.30, 371,431.94 and 105,448.07

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Solution

The fourth proportional to 247,503.30, 371,431.94 and 105,448.07 is: 158,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,503.30 : 371,431.94 = 105,448.07 : x
  2. Step 2: Convert to fraction form
    247,503.30/371,431.94 = 105,448.07/x
  3. Step 3: Cross multiply
    247,503.30x = 371,431.94 × 105,448.07
  4. Step 4: Simplify right side
    247,503.30x = 39,166,778,824.96
  5. Step 5: Solve for x
    x = 39,166,778,824.96/247,503.30
  6. Step 6: Final answer
    x = 158,247.50

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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.