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Finding the Fourth Proportional to 644,459.34, 967,132.77 and 223,735.21

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Solution

The fourth proportional to 644,459.34, 967,132.77 and 223,735.21 is: 335,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,459.34 : 967,132.77 = 223,735.21 : x
  2. Step 2: Convert to fraction form
    644,459.34/967,132.77 = 223,735.21/x
  3. Step 3: Cross multiply
    644,459.34x = 967,132.77 × 223,735.21
  4. Step 4: Simplify right side
    644,459.34x = 216,381,653,393.83
  5. Step 5: Solve for x
    x = 216,381,653,393.83/644,459.34
  6. Step 6: Final answer
    x = 335,756.87

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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.