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Finding the Fourth Proportional to 349,755.17, 524,632.29 and 139,540.73

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Solution

The fourth proportional to 349,755.17, 524,632.29 and 139,540.73 is: 209,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,755.17 : 524,632.29 = 139,540.73 : x
  2. Step 2: Convert to fraction form
    349,755.17/524,632.29 = 139,540.73/x
  3. Step 3: Cross multiply
    349,755.17x = 524,632.29 × 139,540.73
  4. Step 4: Simplify right side
    349,755.17x = 73,207,570,366.65
  5. Step 5: Solve for x
    x = 73,207,570,366.65/349,755.17
  6. Step 6: Final answer
    x = 209,310.91

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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.