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Finding the Fourth Proportional to 446,366.88, 669,575.61 and 142,787.66

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Solution

The fourth proportional to 446,366.88, 669,575.61 and 142,787.66 is: 214,189.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,366.88 : 669,575.61 = 142,787.66 : x
  2. Step 2: Convert to fraction form
    446,366.88/669,575.61 = 142,787.66/x
  3. Step 3: Cross multiply
    446,366.88x = 669,575.61 × 142,787.66
  4. Step 4: Simplify right side
    446,366.88x = 95,607,131,197.09
  5. Step 5: Solve for x
    x = 95,607,131,197.09/446,366.88
  6. Step 6: Final answer
    x = 214,189.57

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1.5x scale

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.