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Finding the Fourth Proportional to 347,340.40, 521,010.60 and 169,961.20

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Solution

The fourth proportional to 347,340.40, 521,010.60 and 169,961.20 is: 254,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,340.40 : 521,010.60 = 169,961.20 : x
  2. Step 2: Convert to fraction form
    347,340.40/521,010.60 = 169,961.20/x
  3. Step 3: Cross multiply
    347,340.40x = 521,010.60 × 169,961.20
  4. Step 4: Simplify right side
    347,340.40x = 88,551,586,788.72
  5. Step 5: Solve for x
    x = 88,551,586,788.72/347,340.40
  6. Step 6: Final answer
    x = 254,941.80

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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.