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Finding the Fourth Proportional to 343,536.58, 515,063.41 and 151,319.78

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Solution

The fourth proportional to 343,536.58, 515,063.41 and 151,319.78 is: 226,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,536.58 : 515,063.41 = 151,319.78 : x
  2. Step 2: Convert to fraction form
    343,536.58/515,063.41 = 151,319.78/x
  3. Step 3: Cross multiply
    343,536.58x = 515,063.41 × 151,319.78
  4. Step 4: Simplify right side
    343,536.58x = 77,939,281,887.25
  5. Step 5: Solve for x
    x = 77,939,281,887.25/343,536.58
  6. Step 6: Final answer
    x = 226,873.31

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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.