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Finding the Fourth Proportional to 449,277.50, 620,028.18 and 245,347.38

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Solution

The fourth proportional to 449,277.50, 620,028.18 and 245,347.38 is: 338,593.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,277.50 : 620,028.18 = 245,347.38 : x
  2. Step 2: Convert to fraction form
    449,277.50/620,028.18 = 245,347.38/x
  3. Step 3: Cross multiply
    449,277.50x = 620,028.18 × 245,347.38
  4. Step 4: Simplify right side
    449,277.50x = 152,122,289,489.17
  5. Step 5: Solve for x
    x = 152,122,289,489.17/449,277.50
  6. Step 6: Final answer
    x = 338,593.16

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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.