Home / 378,004.06-521,646.51-208,241.02

Finding the Fourth Proportional to 378,004.06, 521,646.51 and 208,241.02

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Solution

The fourth proportional to 378,004.06, 521,646.51 and 208,241.02 is: 287,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,004.06 : 521,646.51 = 208,241.02 : x
  2. Step 2: Convert to fraction form
    378,004.06/521,646.51 = 208,241.02/x
  3. Step 3: Cross multiply
    378,004.06x = 521,646.51 × 208,241.02
  4. Step 4: Simplify right side
    378,004.06x = 108,628,201,321.84
  5. Step 5: Solve for x
    x = 108,628,201,321.84/378,004.06
  6. Step 6: Final answer
    x = 287,373.11

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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.