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Finding the Fourth Proportional to 304,950.61, 420,834.31 and 168,986.81

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Solution

The fourth proportional to 304,950.61, 420,834.31 and 168,986.81 is: 233,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,950.61 : 420,834.31 = 168,986.81 : x
  2. Step 2: Convert to fraction form
    304,950.61/420,834.31 = 168,986.81/x
  3. Step 3: Cross multiply
    304,950.61x = 420,834.31 × 168,986.81
  4. Step 4: Simplify right side
    304,950.61x = 71,115,448,986.24
  5. Step 5: Solve for x
    x = 71,115,448,986.24/304,950.61
  6. Step 6: Final answer
    x = 233,203.17

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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.