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Finding the Fourth Proportional to 299,124.12, 448,589.10 and 99,390.87

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Solution

The fourth proportional to 299,124.12, 448,589.10 and 99,390.87 is: 149,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,124.12 : 448,589.10 = 99,390.87 : x
  2. Step 2: Convert to fraction form
    299,124.12/448,589.10 = 99,390.87/x
  3. Step 3: Cross multiply
    299,124.12x = 448,589.10 × 99,390.87
  4. Step 4: Simplify right side
    299,124.12x = 44,585,660,921.52
  5. Step 5: Solve for x
    x = 44,585,660,921.52/299,124.12
  6. Step 6: Final answer
    x = 149,054.05

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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.