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Finding the Fourth Proportional to 351,761.16, 528,347.82 and 209,883.31

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Solution

The fourth proportional to 351,761.16, 528,347.82 and 209,883.31 is: 315,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,761.16 : 528,347.82 = 209,883.31 : x
  2. Step 2: Convert to fraction form
    351,761.16/528,347.82 = 209,883.31/x
  3. Step 3: Cross multiply
    351,761.16x = 528,347.82 × 209,883.31
  4. Step 4: Simplify right side
    351,761.16x = 110,891,388,243.47
  5. Step 5: Solve for x
    x = 110,891,388,243.47/351,761.16
  6. Step 6: Final answer
    x = 315,246.26

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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.