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Finding the Fourth Proportional to 379,405.52, 523,580.99 and 207,323.49

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Solution

The fourth proportional to 379,405.52, 523,580.99 and 207,323.49 is: 286,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,405.52 : 523,580.99 = 207,323.49 : x
  2. Step 2: Convert to fraction form
    379,405.52/523,580.99 = 207,323.49/x
  3. Step 3: Cross multiply
    379,405.52x = 523,580.99 × 207,323.49
  4. Step 4: Simplify right side
    379,405.52x = 108,550,637,107.84
  5. Step 5: Solve for x
    x = 108,550,637,107.84/379,405.52
  6. Step 6: Final answer
    x = 286,107.17

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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.