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Finding the Fourth Proportional to 299,686.05, 449,619.27 and 89,323.96

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Solution

The fourth proportional to 299,686.05, 449,619.27 and 89,323.96 is: 134,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,686.05 : 449,619.27 = 89,323.96 : x
  2. Step 2: Convert to fraction form
    299,686.05/449,619.27 = 89,323.96/x
  3. Step 3: Cross multiply
    299,686.05x = 449,619.27 × 89,323.96
  4. Step 4: Simplify right side
    299,686.05x = 40,161,773,688.71
  5. Step 5: Solve for x
    x = 40,161,773,688.71/299,686.05
  6. Step 6: Final answer
    x = 134,012.82

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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.