Home / 347,741.40-521,612.10-205,440.60

Finding the Fourth Proportional to 347,741.40, 521,612.10 and 205,440.60

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Solution

The fourth proportional to 347,741.40, 521,612.10 and 205,440.60 is: 308,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,741.40 : 521,612.10 = 205,440.60 : x
  2. Step 2: Convert to fraction form
    347,741.40/521,612.10 = 205,440.60/x
  3. Step 3: Cross multiply
    347,741.40x = 521,612.10 × 205,440.60
  4. Step 4: Simplify right side
    347,741.40x = 107,160,302,791.26
  5. Step 5: Solve for x
    x = 107,160,302,791.26/347,741.40
  6. Step 6: Final answer
    x = 308,160.90

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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.