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Finding the Fourth Proportional to 301,269.52, 451,907.76 and 90,909.28

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Solution

The fourth proportional to 301,269.52, 451,907.76 and 90,909.28 is: 136,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,269.52 : 451,907.76 = 90,909.28 : x
  2. Step 2: Convert to fraction form
    301,269.52/451,907.76 = 90,909.28/x
  3. Step 3: Cross multiply
    301,269.52x = 451,907.76 × 90,909.28
  4. Step 4: Simplify right side
    301,269.52x = 41,082,609,088.01
  5. Step 5: Solve for x
    x = 41,082,609,088.01/301,269.52
  6. Step 6: Final answer
    x = 136,364.97

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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.