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Finding the Fourth Proportional to 303,434.55, 455,100.80 and 111,269.25

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Solution

The fourth proportional to 303,434.55, 455,100.80 and 111,269.25 is: 166,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,434.55 : 455,100.80 = 111,269.25 : x
  2. Step 2: Convert to fraction form
    303,434.55/455,100.80 = 111,269.25/x
  3. Step 3: Cross multiply
    303,434.55x = 455,100.80 × 111,269.25
  4. Step 4: Simplify right side
    303,434.55x = 50,638,724,690.40
  5. Step 5: Solve for x
    x = 50,638,724,690.40/303,434.55
  6. Step 6: Final answer
    x = 166,885.16

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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.