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Finding the Fourth Proportional to 188,283.34, 259,831 and 103,400.40

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Solution

The fourth proportional to 188,283.34, 259,831 and 103,400.40 is: 142,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,283.34 : 259,831 = 103,400.40 : x
  2. Step 2: Convert to fraction form
    188,283.34/259,831 = 103,400.40/x
  3. Step 3: Cross multiply
    188,283.34x = 259,831 × 103,400.40
  4. Step 4: Simplify right side
    188,283.34x = 26,866,629,332.40
  5. Step 5: Solve for x
    x = 26,866,629,332.40/188,283.34
  6. Step 6: Final answer
    x = 142,692.55

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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.