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Finding the Fourth Proportional to 258,448.88, 356,510.68 and 161,484.56

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Solution

The fourth proportional to 258,448.88, 356,510.68 and 161,484.56 is: 222,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,448.88 : 356,510.68 = 161,484.56 : x
  2. Step 2: Convert to fraction form
    258,448.88/356,510.68 = 161,484.56/x
  3. Step 3: Cross multiply
    258,448.88x = 356,510.68 × 161,484.56
  4. Step 4: Simplify right side
    258,448.88x = 57,570,970,295.10
  5. Step 5: Solve for x
    x = 57,570,970,295.10/258,448.88
  6. Step 6: Final answer
    x = 222,755.74

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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.