Home / 209,269.28-313,654.70-145,745.48

Finding the Fourth Proportional to 209,269.28, 313,654.70 and 145,745.48

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Solution

The fourth proportional to 209,269.28, 313,654.70 and 145,745.48 is: 218,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,269.28 : 313,654.70 = 145,745.48 : x
  2. Step 2: Convert to fraction form
    209,269.28/313,654.70 = 145,745.48/x
  3. Step 3: Cross multiply
    209,269.28x = 313,654.70 × 145,745.48
  4. Step 4: Simplify right side
    209,269.28x = 45,713,754,805.76
  5. Step 5: Solve for x
    x = 45,713,754,805.76/209,269.28
  6. Step 6: Final answer
    x = 218,444.65

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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.