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Finding the Fourth Proportional to 322,305.60, 483,458.40 and 210,331.20

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Solution

The fourth proportional to 322,305.60, 483,458.40 and 210,331.20 is: 315,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,305.60 : 483,458.40 = 210,331.20 : x
  2. Step 2: Convert to fraction form
    322,305.60/483,458.40 = 210,331.20/x
  3. Step 3: Cross multiply
    322,305.60x = 483,458.40 × 210,331.20
  4. Step 4: Simplify right side
    322,305.60x = 101,686,385,422.08
  5. Step 5: Solve for x
    x = 101,686,385,422.08/322,305.60
  6. Step 6: Final answer
    x = 315,496.80

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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.