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Finding the Fourth Proportional to 252,850.56, 348,943.86 and 145,420.53

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Solution

The fourth proportional to 252,850.56, 348,943.86 and 145,420.53 is: 200,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,850.56 : 348,943.86 = 145,420.53 : x
  2. Step 2: Convert to fraction form
    252,850.56/348,943.86 = 145,420.53/x
  3. Step 3: Cross multiply
    252,850.56x = 348,943.86 × 145,420.53
  4. Step 4: Simplify right side
    252,850.56x = 50,743,601,061.45
  5. Step 5: Solve for x
    x = 50,743,601,061.45/252,850.56
  6. Step 6: Final answer
    x = 200,686.13

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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.