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Finding the Fourth Proportional to 347,796.60, 521,792.10 and 170,309.40

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Solution

The fourth proportional to 347,796.60, 521,792.10 and 170,309.40 is: 255,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,796.60 : 521,792.10 = 170,309.40 : x
  2. Step 2: Convert to fraction form
    347,796.60/521,792.10 = 170,309.40/x
  3. Step 3: Cross multiply
    347,796.60x = 521,792.10 × 170,309.40
  4. Step 4: Simplify right side
    347,796.60x = 88,866,099,475.74
  5. Step 5: Solve for x
    x = 88,866,099,475.74/347,796.60
  6. Step 6: Final answer
    x = 255,511.70

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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.