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Finding the Fourth Proportional to 299,390.68, 449,409.54 and 266,322.52

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Solution

The fourth proportional to 299,390.68, 449,409.54 and 266,322.52 is: 399,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,390.68 : 449,409.54 = 266,322.52 : x
  2. Step 2: Convert to fraction form
    299,390.68/449,409.54 = 266,322.52/x
  3. Step 3: Cross multiply
    299,390.68x = 449,409.54 × 266,322.52
  4. Step 4: Simplify right side
    299,390.68x = 119,687,881,204.84
  5. Step 5: Solve for x
    x = 119,687,881,204.84/299,390.68
  6. Step 6: Final answer
    x = 399,771.57

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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.