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Finding the Fourth Proportional to 300,565.90, 450,775.68 and 100,834.48

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Solution

The fourth proportional to 300,565.90, 450,775.68 and 100,834.48 is: 151,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,565.90 : 450,775.68 = 100,834.48 : x
  2. Step 2: Convert to fraction form
    300,565.90/450,775.68 = 100,834.48/x
  3. Step 3: Cross multiply
    300,565.90x = 450,775.68 × 100,834.48
  4. Step 4: Simplify right side
    300,565.90x = 45,453,731,289.45
  5. Step 5: Solve for x
    x = 45,453,731,289.45/300,565.90
  6. Step 6: Final answer
    x = 151,227.17

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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.