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Finding the Fourth Proportional to 293,687.98, 440,089.10 and 218,455.18

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Solution

The fourth proportional to 293,687.98, 440,089.10 and 218,455.18 is: 327,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,687.98 : 440,089.10 = 218,455.18 : x
  2. Step 2: Convert to fraction form
    293,687.98/440,089.10 = 218,455.18/x
  3. Step 3: Cross multiply
    293,687.98x = 440,089.10 × 218,455.18
  4. Step 4: Simplify right side
    293,687.98x = 96,139,742,183.25
  5. Step 5: Solve for x
    x = 96,139,742,183.25/293,687.98
  6. Step 6: Final answer
    x = 327,353.35

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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.