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Finding the Fourth Proportional to 192,625.60, 288,938.40 and 145,969.60

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Solution

The fourth proportional to 192,625.60, 288,938.40 and 145,969.60 is: 218,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,625.60 : 288,938.40 = 145,969.60 : x
  2. Step 2: Convert to fraction form
    192,625.60/288,938.40 = 145,969.60/x
  3. Step 3: Cross multiply
    192,625.60x = 288,938.40 × 145,969.60
  4. Step 4: Simplify right side
    192,625.60x = 42,176,222,672.64
  5. Step 5: Solve for x
    x = 42,176,222,672.64/192,625.60
  6. Step 6: Final answer
    x = 218,954.40

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1.5x scale

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.