Home / 291,448.97-437,171.02-81,086.30

Finding the Fourth Proportional to 291,448.97, 437,171.02 and 81,086.30

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Solution

The fourth proportional to 291,448.97, 437,171.02 and 81,086.30 is: 121,628.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,448.97 : 437,171.02 = 81,086.30 : x
  2. Step 2: Convert to fraction form
    291,448.97/437,171.02 = 81,086.30/x
  3. Step 3: Cross multiply
    291,448.97x = 437,171.02 × 81,086.30
  4. Step 4: Simplify right side
    291,448.97x = 35,448,578,090.46
  5. Step 5: Solve for x
    x = 35,448,578,090.46/291,448.97
  6. Step 6: Final answer
    x = 121,628.77

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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.