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Finding the Fourth Proportional to 299,013.93, 448,520.90 and 121,479.35

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Solution

The fourth proportional to 299,013.93, 448,520.90 and 121,479.35 is: 182,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,013.93 : 448,520.90 = 121,479.35 : x
  2. Step 2: Convert to fraction form
    299,013.93/448,520.90 = 121,479.35/x
  3. Step 3: Cross multiply
    299,013.93x = 448,520.90 × 121,479.35
  4. Step 4: Simplify right side
    299,013.93x = 54,486,024,543.41
  5. Step 5: Solve for x
    x = 54,486,024,543.41/299,013.93
  6. Step 6: Final answer
    x = 182,219.02

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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.