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Finding the Fourth Proportional to 351,078.30, 525,583.49 and 217,529.15

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Solution

The fourth proportional to 351,078.30, 525,583.49 and 217,529.15 is: 325,653.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,078.30 : 525,583.49 = 217,529.15 : x
  2. Step 2: Convert to fraction form
    351,078.30/525,583.49 = 217,529.15/x
  3. Step 3: Cross multiply
    351,078.30x = 525,583.49 × 217,529.15
  4. Step 4: Simplify right side
    351,078.30x = 114,329,726,118.17
  5. Step 5: Solve for x
    x = 114,329,726,118.17/351,078.30
  6. Step 6: Final answer
    x = 325,653.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.