Home / 258,730.14-387,633.50-140,325.96

Finding the Fourth Proportional to 258,730.14, 387,633.50 and 140,325.96

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Solution

The fourth proportional to 258,730.14, 387,633.50 and 140,325.96 is: 210,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,730.14 : 387,633.50 = 140,325.96 : x
  2. Step 2: Convert to fraction form
    258,730.14/387,633.50 = 140,325.96/x
  3. Step 3: Cross multiply
    258,730.14x = 387,633.50 × 140,325.96
  4. Step 4: Simplify right side
    258,730.14x = 54,395,043,015.66
  5. Step 5: Solve for x
    x = 54,395,043,015.66/258,730.14
  6. Step 6: Final answer
    x = 210,238.53

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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.