Home / 318,508.37-439,535.98-173,309.25

Finding the Fourth Proportional to 318,508.37, 439,535.98 and 173,309.25

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Solution

The fourth proportional to 318,508.37, 439,535.98 and 173,309.25 is: 239,163.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,508.37 : 439,535.98 = 173,309.25 : x
  2. Step 2: Convert to fraction form
    318,508.37/439,535.98 = 173,309.25/x
  3. Step 3: Cross multiply
    318,508.37x = 439,535.98 × 173,309.25
  4. Step 4: Simplify right side
    318,508.37x = 76,175,651,041.82
  5. Step 5: Solve for x
    x = 76,175,651,041.82/318,508.37
  6. Step 6: Final answer
    x = 239,163.73

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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.