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Finding the Fourth Proportional to 447,452.40, 671,241.64 and 143,744.72

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Solution

The fourth proportional to 447,452.40, 671,241.64 and 143,744.72 is: 215,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,452.40 : 671,241.64 = 143,744.72 : x
  2. Step 2: Convert to fraction form
    447,452.40/671,241.64 = 143,744.72/x
  3. Step 3: Cross multiply
    447,452.40x = 671,241.64 × 143,744.72
  4. Step 4: Simplify right side
    447,452.40x = 96,487,441,594.14
  5. Step 5: Solve for x
    x = 96,487,441,594.14/447,452.40
  6. Step 6: Final answer
    x = 215,637.33

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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.