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Finding the Fourth Proportional to 375,468.39, 518,147.01 and 203,386.86

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Solution

The fourth proportional to 375,468.39, 518,147.01 and 203,386.86 is: 280,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,468.39 : 518,147.01 = 203,386.86 : x
  2. Step 2: Convert to fraction form
    375,468.39/518,147.01 = 203,386.86/x
  3. Step 3: Cross multiply
    375,468.39x = 518,147.01 × 203,386.86
  4. Step 4: Simplify right side
    375,468.39x = 105,384,293,382.29
  5. Step 5: Solve for x
    x = 105,384,293,382.29/375,468.39
  6. Step 6: Final answer
    x = 280,674.21

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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.