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Finding the Fourth Proportional to 395,716.94, 546,028.98 and 223,572.10

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Solution

The fourth proportional to 395,716.94, 546,028.98 and 223,572.10 is: 308,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,716.94 : 546,028.98 = 223,572.10 : x
  2. Step 2: Convert to fraction form
    395,716.94/546,028.98 = 223,572.10/x
  3. Step 3: Cross multiply
    395,716.94x = 546,028.98 × 223,572.10
  4. Step 4: Simplify right side
    395,716.94x = 122,076,843,744.46
  5. Step 5: Solve for x
    x = 122,076,843,744.46/395,716.94
  6. Step 6: Final answer
    x = 308,495.37

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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.