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Finding the Fourth Proportional to 266,438.68, 367,667.70 and 151,729

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Solution

The fourth proportional to 266,438.68, 367,667.70 and 151,729 is: 209,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,438.68 : 367,667.70 = 151,729 : x
  2. Step 2: Convert to fraction form
    266,438.68/367,667.70 = 151,729/x
  3. Step 3: Cross multiply
    266,438.68x = 367,667.70 × 151,729
  4. Step 4: Simplify right side
    266,438.68x = 55,785,852,453.30
  5. Step 5: Solve for x
    x = 55,785,852,453.30/266,438.68
  6. Step 6: Final answer
    x = 209,375.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.