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Finding the Fourth Proportional to 318,327.60, 477,496.62 and 107,970.96

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Solution

The fourth proportional to 318,327.60, 477,496.62 and 107,970.96 is: 161,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,327.60 : 477,496.62 = 107,970.96 : x
  2. Step 2: Convert to fraction form
    318,327.60/477,496.62 = 107,970.96/x
  3. Step 3: Cross multiply
    318,327.60x = 477,496.62 × 107,970.96
  4. Step 4: Simplify right side
    318,327.60x = 51,555,768,458.16
  5. Step 5: Solve for x
    x = 51,555,768,458.16/318,327.60
  6. Step 6: Final answer
    x = 161,958.21

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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.