Home / 326,667.40-489,769.44-126,819.34

Finding the Fourth Proportional to 326,667.40, 489,769.44 and 126,819.34

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Solution

The fourth proportional to 326,667.40, 489,769.44 and 126,819.34 is: 190,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,667.40 : 489,769.44 = 126,819.34 : x
  2. Step 2: Convert to fraction form
    326,667.40/489,769.44 = 126,819.34/x
  3. Step 3: Cross multiply
    326,667.40x = 489,769.44 × 126,819.34
  4. Step 4: Simplify right side
    326,667.40x = 62,112,237,132.97
  5. Step 5: Solve for x
    x = 62,112,237,132.97/326,667.40
  6. Step 6: Final answer
    x = 190,139.07

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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.