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Finding the Fourth Proportional to 258,577.76, 356,839.44 and 145,399.52

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Solution

The fourth proportional to 258,577.76, 356,839.44 and 145,399.52 is: 200,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,577.76 : 356,839.44 = 145,399.52 : x
  2. Step 2: Convert to fraction form
    258,577.76/356,839.44 = 145,399.52/x
  3. Step 3: Cross multiply
    258,577.76x = 356,839.44 × 145,399.52
  4. Step 4: Simplify right side
    258,577.76x = 51,884,283,293.07
  5. Step 5: Solve for x
    x = 51,884,283,293.07/258,577.76
  6. Step 6: Final answer
    x = 200,652.54

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1.5x scale

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.