Home / 347,828.80-521,743.20-268,999.60

Finding the Fourth Proportional to 347,828.80, 521,743.20 and 268,999.60

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Solution

The fourth proportional to 347,828.80, 521,743.20 and 268,999.60 is: 403,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,828.80 : 521,743.20 = 268,999.60 : x
  2. Step 2: Convert to fraction form
    347,828.80/521,743.20 = 268,999.60/x
  3. Step 3: Cross multiply
    347,828.80x = 521,743.20 × 268,999.60
  4. Step 4: Simplify right side
    347,828.80x = 140,348,712,102.72
  5. Step 5: Solve for x
    x = 140,348,712,102.72/347,828.80
  6. Step 6: Final answer
    x = 403,499.40

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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.