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Finding the Fourth Proportional to 229,486.60, 344,327.10 and 145,311.40

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Solution

The fourth proportional to 229,486.60, 344,327.10 and 145,311.40 is: 218,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,486.60 : 344,327.10 = 145,311.40 : x
  2. Step 2: Convert to fraction form
    229,486.60/344,327.10 = 145,311.40/x
  3. Step 3: Cross multiply
    229,486.60x = 344,327.10 × 145,311.40
  4. Step 4: Simplify right side
    229,486.60x = 50,034,652,958.94
  5. Step 5: Solve for x
    x = 50,034,652,958.94/229,486.60
  6. Step 6: Final answer
    x = 218,028.65

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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.