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Finding the Fourth Proportional to 354,968.52, 489,857.76 and 227,644.62

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Solution

The fourth proportional to 354,968.52, 489,857.76 and 227,644.62 is: 314,150.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,968.52 : 489,857.76 = 227,644.62 : x
  2. Step 2: Convert to fraction form
    354,968.52/489,857.76 = 227,644.62/x
  3. Step 3: Cross multiply
    354,968.52x = 489,857.76 × 227,644.62
  4. Step 4: Simplify right side
    354,968.52x = 111,513,483,629.25
  5. Step 5: Solve for x
    x = 111,513,483,629.25/354,968.52
  6. Step 6: Final answer
    x = 314,150.35

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1.5x scale

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.