Home / 321,945.74-482,928.78-153,484.46

Finding the Fourth Proportional to 321,945.74, 482,928.78 and 153,484.46

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Solution

The fourth proportional to 321,945.74, 482,928.78 and 153,484.46 is: 230,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,945.74 : 482,928.78 = 153,484.46 : x
  2. Step 2: Convert to fraction form
    321,945.74/482,928.78 = 153,484.46/x
  3. Step 3: Cross multiply
    321,945.74x = 482,928.78 × 153,484.46
  4. Step 4: Simplify right side
    321,945.74x = 74,122,063,016.76
  5. Step 5: Solve for x
    x = 74,122,063,016.76/321,945.74
  6. Step 6: Final answer
    x = 230,231.54

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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.