Home / 384,405.48-576,207-131,611.50

Finding the Fourth Proportional to 384,405.48, 576,207 and 131,611.50

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Solution

The fourth proportional to 384,405.48, 576,207 and 131,611.50 is: 197,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,405.48 : 576,207 = 131,611.50 : x
  2. Step 2: Convert to fraction form
    384,405.48/576,207 = 131,611.50/x
  3. Step 3: Cross multiply
    384,405.48x = 576,207 × 131,611.50
  4. Step 4: Simplify right side
    384,405.48x = 75,835,467,580.50
  5. Step 5: Solve for x
    x = 75,835,467,580.50/384,405.48
  6. Step 6: Final answer
    x = 197,279.88

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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.