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Finding the Fourth Proportional to 297,185.81, 445,777.17 and 72,547.43

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Solution

The fourth proportional to 297,185.81, 445,777.17 and 72,547.43 is: 108,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,185.81 : 445,777.17 = 72,547.43 : x
  2. Step 2: Convert to fraction form
    297,185.81/445,777.17 = 72,547.43/x
  3. Step 3: Cross multiply
    297,185.81x = 445,777.17 × 72,547.43
  4. Step 4: Simplify right side
    297,185.81x = 32,339,985,807.29
  5. Step 5: Solve for x
    x = 32,339,985,807.29/297,185.81
  6. Step 6: Final answer
    x = 108,820.76

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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.