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Finding the Fourth Proportional to 363,559.20, 545,120.10 and 186,412.20

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Solution

The fourth proportional to 363,559.20, 545,120.10 and 186,412.20 is: 279,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,559.20 : 545,120.10 = 186,412.20 : x
  2. Step 2: Convert to fraction form
    363,559.20/545,120.10 = 186,412.20/x
  3. Step 3: Cross multiply
    363,559.20x = 545,120.10 × 186,412.20
  4. Step 4: Simplify right side
    363,559.20x = 101,617,037,105.22
  5. Step 5: Solve for x
    x = 101,617,037,105.22/363,559.20
  6. Step 6: Final answer
    x = 279,506.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.