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Finding the Fourth Proportional to 299,426.56, 449,008.40 and 112,306.88

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Solution

The fourth proportional to 299,426.56, 449,008.40 and 112,306.88 is: 168,411.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,426.56 : 449,008.40 = 112,306.88 : x
  2. Step 2: Convert to fraction form
    299,426.56/449,008.40 = 112,306.88/x
  3. Step 3: Cross multiply
    299,426.56x = 449,008.40 × 112,306.88
  4. Step 4: Simplify right side
    299,426.56x = 50,426,732,497.79
  5. Step 5: Solve for x
    x = 50,426,732,497.79/299,426.56
  6. Step 6: Final answer
    x = 168,411.02

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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.