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Finding the Fourth Proportional to 395,245.68, 592,536.28 and 320,179.68

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Solution

The fourth proportional to 395,245.68, 592,536.28 and 320,179.68 is: 480,000.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,245.68 : 592,536.28 = 320,179.68 : x
  2. Step 2: Convert to fraction form
    395,245.68/592,536.28 = 320,179.68/x
  3. Step 3: Cross multiply
    395,245.68x = 592,536.28 × 320,179.68
  4. Step 4: Simplify right side
    395,245.68x = 189,718,076,518.79
  5. Step 5: Solve for x
    x = 189,718,076,518.79/395,245.68
  6. Step 6: Final answer
    x = 480,000.38

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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.