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Finding the Fourth Proportional to 445,017.88, 667,675.86 and 145,512.28

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Solution

The fourth proportional to 445,017.88, 667,675.86 and 145,512.28 is: 218,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,017.88 : 667,675.86 = 145,512.28 : x
  2. Step 2: Convert to fraction form
    445,017.88/667,675.86 = 145,512.28/x
  3. Step 3: Cross multiply
    445,017.88x = 667,675.86 × 145,512.28
  4. Step 4: Simplify right side
    445,017.88x = 97,155,036,689.56
  5. Step 5: Solve for x
    x = 97,155,036,689.56/445,017.88
  6. Step 6: Final answer
    x = 218,317.15

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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.