Home / 405,154.75-607,668.23-254,935.19

Finding the Fourth Proportional to 405,154.75, 607,668.23 and 254,935.19

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Solution

The fourth proportional to 405,154.75, 607,668.23 and 254,935.19 is: 382,362.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,154.75 : 607,668.23 = 254,935.19 : x
  2. Step 2: Convert to fraction form
    405,154.75/607,668.23 = 254,935.19/x
  3. Step 3: Cross multiply
    405,154.75x = 607,668.23 × 254,935.19
  4. Step 4: Simplify right side
    405,154.75x = 154,916,012,976.38
  5. Step 5: Solve for x
    x = 154,916,012,976.38/405,154.75
  6. Step 6: Final answer
    x = 382,362.57

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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.