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Finding the Fourth Proportional to 443,869.64, 612,542.88 and 239,920.14

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Solution

The fourth proportional to 443,869.64, 612,542.88 and 239,920.14 is: 331,091.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,869.64 : 612,542.88 = 239,920.14 : x
  2. Step 2: Convert to fraction form
    443,869.64/612,542.88 = 239,920.14/x
  3. Step 3: Cross multiply
    443,869.64x = 612,542.88 × 239,920.14
  4. Step 4: Simplify right side
    443,869.64x = 146,961,373,525.60
  5. Step 5: Solve for x
    x = 146,961,373,525.60/443,869.64
  6. Step 6: Final answer
    x = 331,091.29

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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.