Home / 326,504.12-489,945.31-136,947.58

Finding the Fourth Proportional to 326,504.12, 489,945.31 and 136,947.58

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Solution

The fourth proportional to 326,504.12, 489,945.31 and 136,947.58 is: 205,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,504.12 : 489,945.31 = 136,947.58 : x
  2. Step 2: Convert to fraction form
    326,504.12/489,945.31 = 136,947.58/x
  3. Step 3: Cross multiply
    326,504.12x = 489,945.31 × 136,947.58
  4. Step 4: Simplify right side
    326,504.12x = 67,096,822,969.62
  5. Step 5: Solve for x
    x = 67,096,822,969.62/326,504.12
  6. Step 6: Final answer
    x = 205,500.70

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1.5x scale

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.