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Finding the Fourth Proportional to 343,110.67, 514,662.26 and 140,661.60

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Solution

The fourth proportional to 343,110.67, 514,662.26 and 140,661.60 is: 210,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,110.67 : 514,662.26 = 140,661.60 : x
  2. Step 2: Convert to fraction form
    343,110.67/514,662.26 = 140,661.60/x
  3. Step 3: Cross multiply
    343,110.67x = 514,662.26 × 140,661.60
  4. Step 4: Simplify right side
    343,110.67x = 72,393,213,674.60
  5. Step 5: Solve for x
    x = 72,393,213,674.60/343,110.67
  6. Step 6: Final answer
    x = 210,990.86

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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.