Home / 321,837.81-482,799.09-119,406.36

Finding the Fourth Proportional to 321,837.81, 482,799.09 and 119,406.36

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Solution

The fourth proportional to 321,837.81, 482,799.09 and 119,406.36 is: 179,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,837.81 : 482,799.09 = 119,406.36 : x
  2. Step 2: Convert to fraction form
    321,837.81/482,799.09 = 119,406.36/x
  3. Step 3: Cross multiply
    321,837.81x = 482,799.09 × 119,406.36
  4. Step 4: Simplify right side
    321,837.81x = 57,649,281,948.21
  5. Step 5: Solve for x
    x = 57,649,281,948.21/321,837.81
  6. Step 6: Final answer
    x = 179,125.26

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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.