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Finding the Fourth Proportional to 446,200.30, 668,134.05 and 287,569.90

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Solution

The fourth proportional to 446,200.30, 668,134.05 and 287,569.90 is: 430,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,200.30 : 668,134.05 = 287,569.90 : x
  2. Step 2: Convert to fraction form
    446,200.30/668,134.05 = 287,569.90/x
  3. Step 3: Cross multiply
    446,200.30x = 668,134.05 × 287,569.90
  4. Step 4: Simplify right side
    446,200.30x = 192,135,241,945.10
  5. Step 5: Solve for x
    x = 192,135,241,945.10/446,200.30
  6. Step 6: Final answer
    x = 430,603.12

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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.