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Finding the Fourth Proportional to 264,984.59, 397,489.65 and 87,487.67

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Solution

The fourth proportional to 264,984.59, 397,489.65 and 87,487.67 is: 131,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,984.59 : 397,489.65 = 87,487.67 : x
  2. Step 2: Convert to fraction form
    264,984.59/397,489.65 = 87,487.67/x
  3. Step 3: Cross multiply
    264,984.59x = 397,489.65 × 87,487.67
  4. Step 4: Simplify right side
    264,984.59x = 34,775,442,890.18
  5. Step 5: Solve for x
    x = 34,775,442,890.18/264,984.59
  6. Step 6: Final answer
    x = 131,235.72

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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.