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Finding the Fourth Proportional to 450,976.32, 622,310.40 and 257,383.08

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Solution

The fourth proportional to 450,976.32, 622,310.40 and 257,383.08 is: 355,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,976.32 : 622,310.40 = 257,383.08 : x
  2. Step 2: Convert to fraction form
    450,976.32/622,310.40 = 257,383.08/x
  3. Step 3: Cross multiply
    450,976.32x = 622,310.40 × 257,383.08
  4. Step 4: Simplify right side
    450,976.32x = 160,172,167,468.03
  5. Step 5: Solve for x
    x = 160,172,167,468.03/450,976.32
  6. Step 6: Final answer
    x = 355,167.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.