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Finding the Fourth Proportional to 325,488.27, 488,054.43 and 258,450.93

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Solution

The fourth proportional to 325,488.27, 488,054.43 and 258,450.93 is: 387,535.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,488.27 : 488,054.43 = 258,450.93 : x
  2. Step 2: Convert to fraction form
    325,488.27/488,054.43 = 258,450.93/x
  3. Step 3: Cross multiply
    325,488.27x = 488,054.43 × 258,450.93
  4. Step 4: Simplify right side
    325,488.27x = 126,138,118,237.72
  5. Step 5: Solve for x
    x = 126,138,118,237.72/325,488.27
  6. Step 6: Final answer
    x = 387,535.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.