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Finding the Fourth Proportional to 375,391.51, 518,049.75 and 230,277.30

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Solution

The fourth proportional to 375,391.51, 518,049.75 and 230,277.30 is: 317,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,391.51 : 518,049.75 = 230,277.30 : x
  2. Step 2: Convert to fraction form
    375,391.51/518,049.75 = 230,277.30/x
  3. Step 3: Cross multiply
    375,391.51x = 518,049.75 × 230,277.30
  4. Step 4: Simplify right side
    375,391.51x = 119,295,100,339.92
  5. Step 5: Solve for x
    x = 119,295,100,339.92/375,391.51
  6. Step 6: Final answer
    x = 317,788.49

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1.5x scale

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.