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Finding the Fourth Proportional to 231,420.30, 347,130.45 and 73,664.70

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Solution

The fourth proportional to 231,420.30, 347,130.45 and 73,664.70 is: 110,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,420.30 : 347,130.45 = 73,664.70 : x
  2. Step 2: Convert to fraction form
    231,420.30/347,130.45 = 73,664.70/x
  3. Step 3: Cross multiply
    231,420.30x = 347,130.45 × 73,664.70
  4. Step 4: Simplify right side
    231,420.30x = 25,571,260,460.12
  5. Step 5: Solve for x
    x = 25,571,260,460.12/231,420.30
  6. Step 6: Final answer
    x = 110,497.05

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1.5x scale

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.