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Finding the Fourth Proportional to 375,993.04, 518,896.80 and 214,871.90

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Solution

The fourth proportional to 375,993.04, 518,896.80 and 214,871.90 is: 296,538.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,993.04 : 518,896.80 = 214,871.90 : x
  2. Step 2: Convert to fraction form
    375,993.04/518,896.80 = 214,871.90/x
  3. Step 3: Cross multiply
    375,993.04x = 518,896.80 × 214,871.90
  4. Step 4: Simplify right side
    375,993.04x = 111,496,341,319.92
  5. Step 5: Solve for x
    x = 111,496,341,319.92/375,993.04
  6. Step 6: Final answer
    x = 296,538.31

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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.