Home / 395,131.64-545,276.10-225,368.60

Finding the Fourth Proportional to 395,131.64, 545,276.10 and 225,368.60

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Solution

The fourth proportional to 395,131.64, 545,276.10 and 225,368.60 is: 311,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,131.64 : 545,276.10 = 225,368.60 : x
  2. Step 2: Convert to fraction form
    395,131.64/545,276.10 = 225,368.60/x
  3. Step 3: Cross multiply
    395,131.64x = 545,276.10 × 225,368.60
  4. Step 4: Simplify right side
    395,131.64x = 122,888,111,270.46
  5. Step 5: Solve for x
    x = 122,888,111,270.46/395,131.64
  6. Step 6: Final answer
    x = 311,005.49

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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.