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Finding the Fourth Proportional to 395,182.58, 592,835.38 and 128,881

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Solution

The fourth proportional to 395,182.58, 592,835.38 and 128,881 is: 193,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,182.58 : 592,835.38 = 128,881 : x
  2. Step 2: Convert to fraction form
    395,182.58/592,835.38 = 128,881/x
  3. Step 3: Cross multiply
    395,182.58x = 592,835.38 × 128,881
  4. Step 4: Simplify right side
    395,182.58x = 76,405,216,609.78
  5. Step 5: Solve for x
    x = 76,405,216,609.78/395,182.58
  6. Step 6: Final answer
    x = 193,341.56

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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.