Home / 258,226.17-387,361.58-71,237.67

Finding the Fourth Proportional to 258,226.17, 387,361.58 and 71,237.67

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Solution

The fourth proportional to 258,226.17, 387,361.58 and 71,237.67 is: 106,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,226.17 : 387,361.58 = 71,237.67 : x
  2. Step 2: Convert to fraction form
    258,226.17/387,361.58 = 71,237.67/x
  3. Step 3: Cross multiply
    258,226.17x = 387,361.58 × 71,237.67
  4. Step 4: Simplify right side
    258,226.17x = 27,594,737,377.90
  5. Step 5: Solve for x
    x = 27,594,737,377.90/258,226.17
  6. Step 6: Final answer
    x = 106,862.67

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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.