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Finding the Fourth Proportional to 435,432.85, 653,190.50 and 169,213.89

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Solution

The fourth proportional to 435,432.85, 653,190.50 and 169,213.89 is: 253,836.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,432.85 : 653,190.50 = 169,213.89 : x
  2. Step 2: Convert to fraction form
    435,432.85/653,190.50 = 169,213.89/x
  3. Step 3: Cross multiply
    435,432.85x = 653,190.50 × 169,213.89
  4. Step 4: Simplify right side
    435,432.85x = 110,528,905,416.05
  5. Step 5: Solve for x
    x = 110,528,905,416.05/435,432.85
  6. Step 6: Final answer
    x = 253,836.86

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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.