Home / 328,619.33-492,989.88-104,036.30

Finding the Fourth Proportional to 328,619.33, 492,989.88 and 104,036.30

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Solution

The fourth proportional to 328,619.33, 492,989.88 and 104,036.30 is: 156,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,619.33 : 492,989.88 = 104,036.30 : x
  2. Step 2: Convert to fraction form
    328,619.33/492,989.88 = 104,036.30/x
  3. Step 3: Cross multiply
    328,619.33x = 492,989.88 × 104,036.30
  4. Step 4: Simplify right side
    328,619.33x = 51,288,840,587.69
  5. Step 5: Solve for x
    x = 51,288,840,587.69/328,619.33
  6. Step 6: Final answer
    x = 156,073.72

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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.