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Finding the Fourth Proportional to 375,636.48, 518,377.33 and 203,559.21

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Solution

The fourth proportional to 375,636.48, 518,377.33 and 203,559.21 is: 280,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,636.48 : 518,377.33 = 203,559.21 : x
  2. Step 2: Convert to fraction form
    375,636.48/518,377.33 = 203,559.21/x
  3. Step 3: Cross multiply
    375,636.48x = 518,377.33 × 203,559.21
  4. Step 4: Simplify right side
    375,636.48x = 105,520,479,776.71
  5. Step 5: Solve for x
    x = 105,520,479,776.71/375,636.48
  6. Step 6: Final answer
    x = 280,911.16

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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.