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Finding the Fourth Proportional to 300,287,715.20, 450,431,572.80 and 235,790,460.80

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Solution

The fourth proportional to 300,287,715.20, 450,431,572.80 and 235,790,460.80 is: 353,685,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,287,715.20 : 450,431,572.80 = 235,790,460.80 : x
  2. Step 2: Convert to fraction form
    300,287,715.20/450,431,572.80 = 235,790,460.80/x
  3. Step 3: Cross multiply
    300,287,715.20x = 450,431,572.80 × 235,790,460.80
  4. Step 4: Simplify right side
    300,287,715.20x = 106,207,468,109,380,752
  5. Step 5: Solve for x
    x = 106,207,468,109,380,752/300,287,715.20
  6. Step 6: Final answer
    x = 353,685,691.20

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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.