Home / 405,913.14-608,689.71-216,338.18

Finding the Fourth Proportional to 405,913.14, 608,689.71 and 216,338.18

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Solution

The fourth proportional to 405,913.14, 608,689.71 and 216,338.18 is: 324,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,913.14 : 608,689.71 = 216,338.18 : x
  2. Step 2: Convert to fraction form
    405,913.14/608,689.71 = 216,338.18/x
  3. Step 3: Cross multiply
    405,913.14x = 608,689.71 × 216,338.18
  4. Step 4: Simplify right side
    405,913.14x = 131,682,821,002.68
  5. Step 5: Solve for x
    x = 131,682,821,002.68/405,913.14
  6. Step 6: Final answer
    x = 324,411.33

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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.