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Finding the Fourth Proportional to 384,074.40, 576,111.60 and 218,186.40

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Solution

The fourth proportional to 384,074.40, 576,111.60 and 218,186.40 is: 327,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,074.40 : 576,111.60 = 218,186.40 : x
  2. Step 2: Convert to fraction form
    384,074.40/576,111.60 = 218,186.40/x
  3. Step 3: Cross multiply
    384,074.40x = 576,111.60 × 218,186.40
  4. Step 4: Simplify right side
    384,074.40x = 125,699,716,002.24
  5. Step 5: Solve for x
    x = 125,699,716,002.24/384,074.40
  6. Step 6: Final answer
    x = 327,279.60

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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.