Home / 343,823.44-515,935.96-144,128.48

Finding the Fourth Proportional to 343,823.44, 515,935.96 and 144,128.48

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Solution

The fourth proportional to 343,823.44, 515,935.96 and 144,128.48 is: 216,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,823.44 : 515,935.96 = 144,128.48 : x
  2. Step 2: Convert to fraction form
    343,823.44/515,935.96 = 144,128.48/x
  3. Step 3: Cross multiply
    343,823.44x = 515,935.96 × 144,128.48
  4. Step 4: Simplify right side
    343,823.44x = 74,361,065,692.14
  5. Step 5: Solve for x
    x = 74,361,065,692.14/343,823.44
  6. Step 6: Final answer
    x = 216,276.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.