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Finding the Fourth Proportional to 326,852.80, 490,307.46 and 90,195.49

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Solution

The fourth proportional to 326,852.80, 490,307.46 and 90,195.49 is: 135,301.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,852.80 : 490,307.46 = 90,195.49 : x
  2. Step 2: Convert to fraction form
    326,852.80/490,307.46 = 90,195.49/x
  3. Step 3: Cross multiply
    326,852.80x = 490,307.46 × 90,195.49
  4. Step 4: Simplify right side
    326,852.80x = 44,223,521,605.36
  5. Step 5: Solve for x
    x = 44,223,521,605.36/326,852.80
  6. Step 6: Final answer
    x = 135,301.03

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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.