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Finding the Fourth Proportional to 421,558.12, 581,750.58 and 237,799

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Solution

The fourth proportional to 421,558.12, 581,750.58 and 237,799 is: 328,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,558.12 : 581,750.58 = 237,799 : x
  2. Step 2: Convert to fraction form
    421,558.12/581,750.58 = 237,799/x
  3. Step 3: Cross multiply
    421,558.12x = 581,750.58 × 237,799
  4. Step 4: Simplify right side
    421,558.12x = 138,339,706,173.42
  5. Step 5: Solve for x
    x = 138,339,706,173.42/421,558.12
  6. Step 6: Final answer
    x = 328,162.83

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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.