Home / 258,298.83-387,477.27-68,766.59

Finding the Fourth Proportional to 258,298.83, 387,477.27 and 68,766.59

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Solution

The fourth proportional to 258,298.83, 387,477.27 and 68,766.59 is: 103,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,298.83 : 387,477.27 = 68,766.59 : x
  2. Step 2: Convert to fraction form
    258,298.83/387,477.27 = 68,766.59/x
  3. Step 3: Cross multiply
    258,298.83x = 387,477.27 × 68,766.59
  4. Step 4: Simplify right side
    258,298.83x = 26,645,491,529.10
  5. Step 5: Solve for x
    x = 26,645,491,529.10/258,298.83
  6. Step 6: Final answer
    x = 103,157.62

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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.