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Finding the Fourth Proportional to 388,674, 536,504.36 and 227,580.84

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Solution

The fourth proportional to 388,674, 536,504.36 and 227,580.84 is: 314,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,674 : 536,504.36 = 227,580.84 : x
  2. Step 2: Convert to fraction form
    388,674/536,504.36 = 227,580.84/x
  3. Step 3: Cross multiply
    388,674x = 536,504.36 × 227,580.84
  4. Step 4: Simplify right side
    388,674x = 122,098,111,774.56
  5. Step 5: Solve for x
    x = 122,098,111,774.56/388,674
  6. Step 6: Final answer
    x = 314,140.16

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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.