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Finding the Fourth Proportional to 300,624.32, 450,978.01 and 101,001.80

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Solution

The fourth proportional to 300,624.32, 450,978.01 and 101,001.80 is: 151,516.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,624.32 : 450,978.01 = 101,001.80 : x
  2. Step 2: Convert to fraction form
    300,624.32/450,978.01 = 101,001.80/x
  3. Step 3: Cross multiply
    300,624.32x = 450,978.01 × 101,001.80
  4. Step 4: Simplify right side
    300,624.32x = 45,549,591,645.36
  5. Step 5: Solve for x
    x = 45,549,591,645.36/300,624.32
  6. Step 6: Final answer
    x = 151,516.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.