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Finding the Fourth Proportional to 322,403.40, 483,605.10 and 308,752.20

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Solution

The fourth proportional to 322,403.40, 483,605.10 and 308,752.20 is: 463,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,403.40 : 483,605.10 = 308,752.20 : x
  2. Step 2: Convert to fraction form
    322,403.40/483,605.10 = 308,752.20/x
  3. Step 3: Cross multiply
    322,403.40x = 483,605.10 × 308,752.20
  4. Step 4: Simplify right side
    322,403.40x = 149,314,138,556.22
  5. Step 5: Solve for x
    x = 149,314,138,556.22/322,403.40
  6. Step 6: Final answer
    x = 463,128.30

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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.