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Finding the Fourth Proportional to 371,551.86, 512,744.58 and 201,787.20

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Solution

The fourth proportional to 371,551.86, 512,744.58 and 201,787.20 is: 278,467.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,551.86 : 512,744.58 = 201,787.20 : x
  2. Step 2: Convert to fraction form
    371,551.86/512,744.58 = 201,787.20/x
  3. Step 3: Cross multiply
    371,551.86x = 512,744.58 × 201,787.20
  4. Step 4: Simplify right side
    371,551.86x = 103,465,293,113.38
  5. Step 5: Solve for x
    x = 103,465,293,113.38/371,551.86
  6. Step 6: Final answer
    x = 278,467.97

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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.