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Finding the Fourth Proportional to 395,666.94, 545,988 and 232,306.26

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Solution

The fourth proportional to 395,666.94, 545,988 and 232,306.26 is: 320,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,666.94 : 545,988 = 232,306.26 : x
  2. Step 2: Convert to fraction form
    395,666.94/545,988 = 232,306.26/x
  3. Step 3: Cross multiply
    395,666.94x = 545,988 × 232,306.26
  4. Step 4: Simplify right side
    395,666.94x = 126,836,430,284.88
  5. Step 5: Solve for x
    x = 126,836,430,284.88/395,666.94
  6. Step 6: Final answer
    x = 320,563.63

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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.