Home / 395,613.12-545,943.84-214,328.60

Finding the Fourth Proportional to 395,613.12, 545,943.84 and 214,328.60

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Solution

The fourth proportional to 395,613.12, 545,943.84 and 214,328.60 is: 295,772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,613.12 : 545,943.84 = 214,328.60 : x
  2. Step 2: Convert to fraction form
    395,613.12/545,943.84 = 214,328.60/x
  3. Step 3: Cross multiply
    395,613.12x = 545,943.84 × 214,328.60
  4. Step 4: Simplify right side
    395,613.12x = 117,011,378,905.82
  5. Step 5: Solve for x
    x = 117,011,378,905.82/395,613.12
  6. Step 6: Final answer
    x = 295,772.24

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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.