Home / 325,854.12-489,045.24-168,127.68

Finding the Fourth Proportional to 325,854.12, 489,045.24 and 168,127.68

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Solution

The fourth proportional to 325,854.12, 489,045.24 and 168,127.68 is: 252,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,854.12 : 489,045.24 = 168,127.68 : x
  2. Step 2: Convert to fraction form
    325,854.12/489,045.24 = 168,127.68/x
  3. Step 3: Cross multiply
    325,854.12x = 489,045.24 × 168,127.68
  4. Step 4: Simplify right side
    325,854.12x = 82,222,041,616.24
  5. Step 5: Solve for x
    x = 82,222,041,616.24/325,854.12
  6. Step 6: Final answer
    x = 252,327.76

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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.