Home / 320,025.73-480,036.86-130,485.36

Finding the Fourth Proportional to 320,025.73, 480,036.86 and 130,485.36

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Solution

The fourth proportional to 320,025.73, 480,036.86 and 130,485.36 is: 195,727.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,025.73 : 480,036.86 = 130,485.36 : x
  2. Step 2: Convert to fraction form
    320,025.73/480,036.86 = 130,485.36/x
  3. Step 3: Cross multiply
    320,025.73x = 480,036.86 × 130,485.36
  4. Step 4: Simplify right side
    320,025.73x = 62,637,781,837.94
  5. Step 5: Solve for x
    x = 62,637,781,837.94/320,025.73
  6. Step 6: Final answer
    x = 195,727.33

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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.