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Finding the Fourth Proportional to 434,861.55, 652,353.83 and 135,372.35

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Solution

The fourth proportional to 434,861.55, 652,353.83 and 135,372.35 is: 203,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,861.55 : 652,353.83 = 135,372.35 : x
  2. Step 2: Convert to fraction form
    434,861.55/652,353.83 = 135,372.35/x
  3. Step 3: Cross multiply
    434,861.55x = 652,353.83 × 135,372.35
  4. Step 4: Simplify right side
    434,861.55x = 88,310,670,998.60
  5. Step 5: Solve for x
    x = 88,310,670,998.60/434,861.55
  6. Step 6: Final answer
    x = 203,077.67

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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.