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Finding the Fourth Proportional to 344,862.88, 475,976.28 and 215,861.20

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Solution

The fourth proportional to 344,862.88, 475,976.28 and 215,861.20 is: 297,929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,862.88 : 475,976.28 = 215,861.20 : x
  2. Step 2: Convert to fraction form
    344,862.88/475,976.28 = 215,861.20/x
  3. Step 3: Cross multiply
    344,862.88x = 475,976.28 × 215,861.20
  4. Step 4: Simplify right side
    344,862.88x = 102,744,810,972.34
  5. Step 5: Solve for x
    x = 102,744,810,972.34/344,862.88
  6. Step 6: Final answer
    x = 297,929.46

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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.