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Finding the Fourth Proportional to 299,866.66, 449,924.93 and 131,507.81

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Solution

The fourth proportional to 299,866.66, 449,924.93 and 131,507.81 is: 197,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,866.66 : 449,924.93 = 131,507.81 : x
  2. Step 2: Convert to fraction form
    299,866.66/449,924.93 = 131,507.81/x
  3. Step 3: Cross multiply
    299,866.66x = 449,924.93 × 131,507.81
  4. Step 4: Simplify right side
    299,866.66x = 59,168,643,637.95
  5. Step 5: Solve for x
    x = 59,168,643,637.95/299,866.66
  6. Step 6: Final answer
    x = 197,316.51

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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.