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Finding the Fourth Proportional to 281,644.36, 388,668.77 and 152,586.12

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Solution

The fourth proportional to 281,644.36, 388,668.77 and 152,586.12 is: 210,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,644.36 : 388,668.77 = 152,586.12 : x
  2. Step 2: Convert to fraction form
    281,644.36/388,668.77 = 152,586.12/x
  3. Step 3: Cross multiply
    281,644.36x = 388,668.77 × 152,586.12
  4. Step 4: Simplify right side
    281,644.36x = 59,305,459,579.47
  5. Step 5: Solve for x
    x = 59,305,459,579.47/281,644.36
  6. Step 6: Final answer
    x = 210,568.60

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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.