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Finding the Fourth Proportional to 447,378.64, 670,860.60 and 166,820.56

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Solution

The fourth proportional to 447,378.64, 670,860.60 and 166,820.56 is: 250,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,378.64 : 670,860.60 = 166,820.56 : x
  2. Step 2: Convert to fraction form
    447,378.64/670,860.60 = 166,820.56/x
  3. Step 3: Cross multiply
    447,378.64x = 670,860.60 × 166,820.56
  4. Step 4: Simplify right side
    447,378.64x = 111,913,340,973.94
  5. Step 5: Solve for x
    x = 111,913,340,973.94/447,378.64
  6. Step 6: Final answer
    x = 250,153.52

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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.