Home / 291,731.39-437,629.93-91,992.68

Finding the Fourth Proportional to 291,731.39, 437,629.93 and 91,992.68

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Solution

The fourth proportional to 291,731.39, 437,629.93 and 91,992.68 is: 137,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,731.39 : 437,629.93 = 91,992.68 : x
  2. Step 2: Convert to fraction form
    291,731.39/437,629.93 = 91,992.68/x
  3. Step 3: Cross multiply
    291,731.39x = 437,629.93 × 91,992.68
  4. Step 4: Simplify right side
    291,731.39x = 40,258,750,973.01
  5. Step 5: Solve for x
    x = 40,258,750,973.01/291,731.39
  6. Step 6: Final answer
    x = 137,999.38

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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.