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Finding the Fourth Proportional to 395,564.97, 545,880.30 and 234,499.17

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Solution

The fourth proportional to 395,564.97, 545,880.30 and 234,499.17 is: 323,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,564.97 : 545,880.30 = 234,499.17 : x
  2. Step 2: Convert to fraction form
    395,564.97/545,880.30 = 234,499.17/x
  3. Step 3: Cross multiply
    395,564.97x = 545,880.30 × 234,499.17
  4. Step 4: Simplify right side
    395,564.97x = 128,008,477,269.35
  5. Step 5: Solve for x
    x = 128,008,477,269.35/395,564.97
  6. Step 6: Final answer
    x = 323,609.23

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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.