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Finding the Fourth Proportional to 443,452.20, 611,964.60 and 252,465.60

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Solution

The fourth proportional to 443,452.20, 611,964.60 and 252,465.60 is: 348,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,452.20 : 611,964.60 = 252,465.60 : x
  2. Step 2: Convert to fraction form
    443,452.20/611,964.60 = 252,465.60/x
  3. Step 3: Cross multiply
    443,452.20x = 611,964.60 × 252,465.60
  4. Step 4: Simplify right side
    443,452.20x = 154,500,009,917.76
  5. Step 5: Solve for x
    x = 154,500,009,917.76/443,452.20
  6. Step 6: Final answer
    x = 348,402.85

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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.