Home / 465,309.87-642,113.61-258,577.56

Finding the Fourth Proportional to 465,309.87, 642,113.61 and 258,577.56

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Solution

The fourth proportional to 465,309.87, 642,113.61 and 258,577.56 is: 356,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,309.87 : 642,113.61 = 258,577.56 : x
  2. Step 2: Convert to fraction form
    465,309.87/642,113.61 = 258,577.56/x
  3. Step 3: Cross multiply
    465,309.87x = 642,113.61 × 258,577.56
  4. Step 4: Simplify right side
    465,309.87x = 166,036,170,516.59
  5. Step 5: Solve for x
    x = 166,036,170,516.59/465,309.87
  6. Step 6: Final answer
    x = 356,829.25

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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.