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Finding the Fourth Proportional to 375,617.94, 518,189.85 and 248,470.98

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Solution

The fourth proportional to 375,617.94, 518,189.85 and 248,470.98 is: 342,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,617.94 : 518,189.85 = 248,470.98 : x
  2. Step 2: Convert to fraction form
    375,617.94/518,189.85 = 248,470.98/x
  3. Step 3: Cross multiply
    375,617.94x = 518,189.85 × 248,470.98
  4. Step 4: Simplify right side
    375,617.94x = 128,755,139,855.55
  5. Step 5: Solve for x
    x = 128,755,139,855.55/375,617.94
  6. Step 6: Final answer
    x = 342,782.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.