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Finding the Fourth Proportional to 443,340, 611,813.10 and 252,365.68

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Solution

The fourth proportional to 443,340, 611,813.10 and 252,365.68 is: 348,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,340 : 611,813.10 = 252,365.68 : x
  2. Step 2: Convert to fraction form
    443,340/611,813.10 = 252,365.68/x
  3. Step 3: Cross multiply
    443,340x = 611,813.10 × 252,365.68
  4. Step 4: Simplify right side
    443,340x = 154,400,629,014.41
  5. Step 5: Solve for x
    x = 154,400,629,014.41/443,340
  6. Step 6: Final answer
    x = 348,266.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.