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Finding the Fourth Proportional to 326,095.40, 489,118.80 and 136,506.80

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Solution

The fourth proportional to 326,095.40, 489,118.80 and 136,506.80 is: 204,750.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,095.40 : 489,118.80 = 136,506.80 : x
  2. Step 2: Convert to fraction form
    326,095.40/489,118.80 = 136,506.80/x
  3. Step 3: Cross multiply
    326,095.40x = 489,118.80 × 136,506.80
  4. Step 4: Simplify right side
    326,095.40x = 66,768,042,207.84
  5. Step 5: Solve for x
    x = 66,768,042,207.84/326,095.40
  6. Step 6: Final answer
    x = 204,750.03

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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.