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Finding the Fourth Proportional to 379,647.68, 523,899.68 and 218,527.52

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Solution

The fourth proportional to 379,647.68, 523,899.68 and 218,527.52 is: 301,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,647.68 : 523,899.68 = 218,527.52 : x
  2. Step 2: Convert to fraction form
    379,647.68/523,899.68 = 218,527.52/x
  3. Step 3: Cross multiply
    379,647.68x = 523,899.68 × 218,527.52
  4. Step 4: Simplify right side
    379,647.68x = 114,486,497,799.19
  5. Step 5: Solve for x
    x = 114,486,497,799.19/379,647.68
  6. Step 6: Final answer
    x = 301,559.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.