Home / 318,436.92-439,446.41-173,243.51

Finding the Fourth Proportional to 318,436.92, 439,446.41 and 173,243.51

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Solution

The fourth proportional to 318,436.92, 439,446.41 and 173,243.51 is: 239,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,436.92 : 439,446.41 = 173,243.51 : x
  2. Step 2: Convert to fraction form
    318,436.92/439,446.41 = 173,243.51/x
  3. Step 3: Cross multiply
    318,436.92x = 439,446.41 × 173,243.51
  4. Step 4: Simplify right side
    318,436.92x = 76,131,238,733.93
  5. Step 5: Solve for x
    x = 76,131,238,733.93/318,436.92
  6. Step 6: Final answer
    x = 239,077.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.