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Finding the Fourth Proportional to 298,637.40, 446,660.10 and 267,274.20

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Solution

The fourth proportional to 298,637.40, 446,660.10 and 267,274.20 is: 399,751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,637.40 : 446,660.10 = 267,274.20 : x
  2. Step 2: Convert to fraction form
    298,637.40/446,660.10 = 267,274.20/x
  3. Step 3: Cross multiply
    298,637.40x = 446,660.10 × 267,274.20
  4. Step 4: Simplify right side
    298,637.40x = 119,380,720,899.42
  5. Step 5: Solve for x
    x = 119,380,720,899.42/298,637.40
  6. Step 6: Final answer
    x = 399,751.41

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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.