Home / 192,419.10-288,628.65-189,138.60

Finding the Fourth Proportional to 192,419.10, 288,628.65 and 189,138.60

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Solution

The fourth proportional to 192,419.10, 288,628.65 and 189,138.60 is: 283,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,419.10 : 288,628.65 = 189,138.60 : x
  2. Step 2: Convert to fraction form
    192,419.10/288,628.65 = 189,138.60/x
  3. Step 3: Cross multiply
    192,419.10x = 288,628.65 × 189,138.60
  4. Step 4: Simplify right side
    192,419.10x = 54,590,818,780.89
  5. Step 5: Solve for x
    x = 54,590,818,780.89/192,419.10
  6. Step 6: Final answer
    x = 283,707.90

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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.