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Finding the Fourth Proportional to 322,264.80, 483,397.20 and 135,640.80

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Solution

The fourth proportional to 322,264.80, 483,397.20 and 135,640.80 is: 203,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,264.80 : 483,397.20 = 135,640.80 : x
  2. Step 2: Convert to fraction form
    322,264.80/483,397.20 = 135,640.80/x
  3. Step 3: Cross multiply
    322,264.80x = 483,397.20 × 135,640.80
  4. Step 4: Simplify right side
    322,264.80x = 65,568,382,925.76
  5. Step 5: Solve for x
    x = 65,568,382,925.76/322,264.80
  6. Step 6: Final answer
    x = 203,461.20

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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.