Home / 326,557.35-489,461.39-136,982.66

Finding the Fourth Proportional to 326,557.35, 489,461.39 and 136,982.66

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Solution

The fourth proportional to 326,557.35, 489,461.39 and 136,982.66 is: 205,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,557.35 : 489,461.39 = 136,982.66 : x
  2. Step 2: Convert to fraction form
    326,557.35/489,461.39 = 136,982.66/x
  3. Step 3: Cross multiply
    326,557.35x = 489,461.39 × 136,982.66
  4. Step 4: Simplify right side
    326,557.35x = 67,047,720,037.28
  5. Step 5: Solve for x
    x = 67,047,720,037.28/326,557.35
  6. Step 6: Final answer
    x = 205,316.83

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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.