Home / 325,127.20-486,740.40-231,815.20

Finding the Fourth Proportional to 325,127.20, 486,740.40 and 231,815.20

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Solution

The fourth proportional to 325,127.20, 486,740.40 and 231,815.20 is: 347,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,127.20 : 486,740.40 = 231,815.20 : x
  2. Step 2: Convert to fraction form
    325,127.20/486,740.40 = 231,815.20/x
  3. Step 3: Cross multiply
    325,127.20x = 486,740.40 × 231,815.20
  4. Step 4: Simplify right side
    325,127.20x = 112,833,823,174.08
  5. Step 5: Solve for x
    x = 112,833,823,174.08/325,127.20
  6. Step 6: Final answer
    x = 347,045.17

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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.