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Finding the Fourth Proportional to 323,245.20, 484,642.38 and 143,232.72

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Solution

The fourth proportional to 323,245.20, 484,642.38 and 143,232.72 is: 214,749.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,245.20 : 484,642.38 = 143,232.72 : x
  2. Step 2: Convert to fraction form
    323,245.20/484,642.38 = 143,232.72/x
  3. Step 3: Cross multiply
    323,245.20x = 484,642.38 × 143,232.72
  4. Step 4: Simplify right side
    323,245.20x = 69,416,646,314.67
  5. Step 5: Solve for x
    x = 69,416,646,314.67/323,245.20
  6. Step 6: Final answer
    x = 214,749.19

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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.