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Finding the Fourth Proportional to 258,889.87, 357,443.57 and 162,132.53

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Solution

The fourth proportional to 258,889.87, 357,443.57 and 162,132.53 is: 223,852.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,889.87 : 357,443.57 = 162,132.53 : x
  2. Step 2: Convert to fraction form
    258,889.87/357,443.57 = 162,132.53/x
  3. Step 3: Cross multiply
    258,889.87x = 357,443.57 × 162,132.53
  4. Step 4: Simplify right side
    258,889.87x = 57,953,229,525.67
  5. Step 5: Solve for x
    x = 57,953,229,525.67/258,889.87
  6. Step 6: Final answer
    x = 223,852.83

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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.