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Finding the Fourth Proportional to 297,272.64, 445,915.80 and 72,634.92

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Solution

The fourth proportional to 297,272.64, 445,915.80 and 72,634.92 is: 108,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,272.64 : 445,915.80 = 72,634.92 : x
  2. Step 2: Convert to fraction form
    297,272.64/445,915.80 = 72,634.92/x
  3. Step 3: Cross multiply
    297,272.64x = 445,915.80 × 72,634.92
  4. Step 4: Simplify right side
    297,272.64x = 32,389,058,459.74
  5. Step 5: Solve for x
    x = 32,389,058,459.74/297,272.64
  6. Step 6: Final answer
    x = 108,954.05

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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.