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Finding the Fourth Proportional to 239,832.96, 359,765 and 79,902.08

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Solution

The fourth proportional to 239,832.96, 359,765 and 79,902.08 is: 119,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,832.96 : 359,765 = 79,902.08 : x
  2. Step 2: Convert to fraction form
    239,832.96/359,765 = 79,902.08/x
  3. Step 3: Cross multiply
    239,832.96x = 359,765 × 79,902.08
  4. Step 4: Simplify right side
    239,832.96x = 28,745,971,811.20
  5. Step 5: Solve for x
    x = 28,745,971,811.20/239,832.96
  6. Step 6: Final answer
    x = 119,858.30

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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.