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Finding the Fourth Proportional to 299,939.60, 449,326.20 and 166,581.20

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Solution

The fourth proportional to 299,939.60, 449,326.20 and 166,581.20 is: 249,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,939.60 : 449,326.20 = 166,581.20 : x
  2. Step 2: Convert to fraction form
    299,939.60/449,326.20 = 166,581.20/x
  3. Step 3: Cross multiply
    299,939.60x = 449,326.20 × 166,581.20
  4. Step 4: Simplify right side
    299,939.60x = 74,849,297,587.44
  5. Step 5: Solve for x
    x = 74,849,297,587.44/299,939.60
  6. Step 6: Final answer
    x = 249,547.90

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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.