Home / 325,192.12-487,894.25-145,255.61

Finding the Fourth Proportional to 325,192.12, 487,894.25 and 145,255.61

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Solution

The fourth proportional to 325,192.12, 487,894.25 and 145,255.61 is: 217,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,192.12 : 487,894.25 = 145,255.61 : x
  2. Step 2: Convert to fraction form
    325,192.12/487,894.25 = 145,255.61/x
  3. Step 3: Cross multiply
    325,192.12x = 487,894.25 × 145,255.61
  4. Step 4: Simplify right side
    325,192.12x = 70,869,378,482.12
  5. Step 5: Solve for x
    x = 70,869,378,482.12/325,192.12
  6. Step 6: Final answer
    x = 217,930.80

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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.