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Finding the Fourth Proportional to 375,500.07, 518,233.55 and 214,378.31

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Solution

The fourth proportional to 375,500.07, 518,233.55 and 214,378.31 is: 295,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,500.07 : 518,233.55 = 214,378.31 : x
  2. Step 2: Convert to fraction form
    375,500.07/518,233.55 = 214,378.31/x
  3. Step 3: Cross multiply
    375,500.07x = 518,233.55 × 214,378.31
  4. Step 4: Simplify right side
    375,500.07x = 111,098,032,857.99
  5. Step 5: Solve for x
    x = 111,098,032,857.99/375,500.07
  6. Step 6: Final answer
    x = 295,866.88

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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.