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Finding the Fourth Proportional to 179,388, 247,555.44 and 103,980.24

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Solution

The fourth proportional to 179,388, 247,555.44 and 103,980.24 is: 143,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,388 : 247,555.44 = 103,980.24 : x
  2. Step 2: Convert to fraction form
    179,388/247,555.44 = 103,980.24/x
  3. Step 3: Cross multiply
    179,388x = 247,555.44 × 103,980.24
  4. Step 4: Simplify right side
    179,388x = 25,740,874,064.51
  5. Step 5: Solve for x
    x = 25,740,874,064.51/179,388
  6. Step 6: Final answer
    x = 143,492.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.