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Finding the Fourth Proportional to 199,320.40, 298,980.60 and 136,334.80

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Solution

The fourth proportional to 199,320.40, 298,980.60 and 136,334.80 is: 204,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,320.40 : 298,980.60 = 136,334.80 : x
  2. Step 2: Convert to fraction form
    199,320.40/298,980.60 = 136,334.80/x
  3. Step 3: Cross multiply
    199,320.40x = 298,980.60 × 136,334.80
  4. Step 4: Simplify right side
    199,320.40x = 40,761,460,304.88
  5. Step 5: Solve for x
    x = 40,761,460,304.88/199,320.40
  6. Step 6: Final answer
    x = 204,502.20

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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.