Home / 405,338.18-608,007.06-105,816.17

Finding the Fourth Proportional to 405,338.18, 608,007.06 and 105,816.17

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Solution

The fourth proportional to 405,338.18, 608,007.06 and 105,816.17 is: 158,724.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,338.18 : 608,007.06 = 105,816.17 : x
  2. Step 2: Convert to fraction form
    405,338.18/608,007.06 = 105,816.17/x
  3. Step 3: Cross multiply
    405,338.18x = 608,007.06 × 105,816.17
  4. Step 4: Simplify right side
    405,338.18x = 64,336,979,942.18
  5. Step 5: Solve for x
    x = 64,336,979,942.18/405,338.18
  6. Step 6: Final answer
    x = 158,724.21

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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.