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Finding the Fourth Proportional to 180,390.09, 248,964.60 and 103,894.30

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Solution

The fourth proportional to 180,390.09, 248,964.60 and 103,894.30 is: 143,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,390.09 : 248,964.60 = 103,894.30 : x
  2. Step 2: Convert to fraction form
    180,390.09/248,964.60 = 103,894.30/x
  3. Step 3: Cross multiply
    180,390.09x = 248,964.60 × 103,894.30
  4. Step 4: Simplify right side
    180,390.09x = 25,866,003,542.59
  5. Step 5: Solve for x
    x = 25,866,003,542.59/180,390.09
  6. Step 6: Final answer
    x = 143,389.27

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1.5x scale

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.