Home / 258,281.37-387,450.31-87,626.30

Finding the Fourth Proportional to 258,281.37, 387,450.31 and 87,626.30

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Solution

The fourth proportional to 258,281.37, 387,450.31 and 87,626.30 is: 131,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,281.37 : 387,450.31 = 87,626.30 : x
  2. Step 2: Convert to fraction form
    258,281.37/387,450.31 = 87,626.30/x
  3. Step 3: Cross multiply
    258,281.37x = 387,450.31 × 87,626.30
  4. Step 4: Simplify right side
    258,281.37x = 33,950,837,848.71
  5. Step 5: Solve for x
    x = 33,950,837,848.71/258,281.37
  6. Step 6: Final answer
    x = 131,449.04

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1.5x scale

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.