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Finding the Fourth Proportional to 297,275.67, 445,911.87 and 72,637.35

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Solution

The fourth proportional to 297,275.67, 445,911.87 and 72,637.35 is: 108,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,275.67 : 445,911.87 = 72,637.35 : x
  2. Step 2: Convert to fraction form
    297,275.67/445,911.87 = 72,637.35/x
  3. Step 3: Cross multiply
    297,275.67x = 445,911.87 × 72,637.35
  4. Step 4: Simplify right side
    297,275.67x = 32,389,856,570.34
  5. Step 5: Solve for x
    x = 32,389,856,570.34/297,275.67
  6. Step 6: Final answer
    x = 108,955.63

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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.