Home / 345,668.37-518,502.57-109,029.51

Finding the Fourth Proportional to 345,668.37, 518,502.57 and 109,029.51

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Solution

The fourth proportional to 345,668.37, 518,502.57 and 109,029.51 is: 163,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,668.37 : 518,502.57 = 109,029.51 : x
  2. Step 2: Convert to fraction form
    345,668.37/518,502.57 = 109,029.51/x
  3. Step 3: Cross multiply
    345,668.37x = 518,502.57 × 109,029.51
  4. Step 4: Simplify right side
    345,668.37x = 56,532,081,140.84
  5. Step 5: Solve for x
    x = 56,532,081,140.84/345,668.37
  6. Step 6: Final answer
    x = 163,544.27

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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.