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Finding the Fourth Proportional to 322,435.04, 483,651.99 and 85,777.72

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Solution

The fourth proportional to 322,435.04, 483,651.99 and 85,777.72 is: 128,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,435.04 : 483,651.99 = 85,777.72 : x
  2. Step 2: Convert to fraction form
    322,435.04/483,651.99 = 85,777.72/x
  3. Step 3: Cross multiply
    322,435.04x = 483,651.99 × 85,777.72
  4. Step 4: Simplify right side
    322,435.04x = 41,486,563,525.28
  5. Step 5: Solve for x
    x = 41,486,563,525.28/322,435.04
  6. Step 6: Final answer
    x = 128,666.42

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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.