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Finding the Fourth Proportional to 343,849.80, 515,337.30 and 165,973.80

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Solution

The fourth proportional to 343,849.80, 515,337.30 and 165,973.80 is: 248,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,849.80 : 515,337.30 = 165,973.80 : x
  2. Step 2: Convert to fraction form
    343,849.80/515,337.30 = 165,973.80/x
  3. Step 3: Cross multiply
    343,849.80x = 515,337.30 × 165,973.80
  4. Step 4: Simplify right side
    343,849.80x = 85,532,489,962.74
  5. Step 5: Solve for x
    x = 85,532,489,962.74/343,849.80
  6. Step 6: Final answer
    x = 248,749.57

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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.