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Finding the Fourth Proportional to 299,480.59, 449,071.03 and 99,731.35

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Solution

The fourth proportional to 299,480.59, 449,071.03 and 99,731.35 is: 149,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,480.59 : 449,071.03 = 99,731.35 : x
  2. Step 2: Convert to fraction form
    299,480.59/449,071.03 = 99,731.35/x
  3. Step 3: Cross multiply
    299,480.59x = 449,071.03 × 99,731.35
  4. Step 4: Simplify right side
    299,480.59x = 44,786,460,067.79
  5. Step 5: Solve for x
    x = 44,786,460,067.79/299,480.59
  6. Step 6: Final answer
    x = 149,547.12

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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.