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Finding the Fourth Proportional to 356,727.89, 534,378.88 and 214,495.28

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Solution

The fourth proportional to 356,727.89, 534,378.88 and 214,495.28 is: 321,314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,727.89 : 534,378.88 = 214,495.28 : x
  2. Step 2: Convert to fraction form
    356,727.89/534,378.88 = 214,495.28/x
  3. Step 3: Cross multiply
    356,727.89x = 534,378.88 × 214,495.28
  4. Step 4: Simplify right side
    356,727.89x = 114,621,744,283.55
  5. Step 5: Solve for x
    x = 114,621,744,283.55/356,727.89
  6. Step 6: Final answer
    x = 321,314.23

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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.