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Finding the Fourth Proportional to 266,437.68, 367,666.32 and 151,728

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Solution

The fourth proportional to 266,437.68, 367,666.32 and 151,728 is: 209,374.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,437.68 : 367,666.32 = 151,728 : x
  2. Step 2: Convert to fraction form
    266,437.68/367,666.32 = 151,728/x
  3. Step 3: Cross multiply
    266,437.68x = 367,666.32 × 151,728
  4. Step 4: Simplify right side
    266,437.68x = 55,785,275,400.96
  5. Step 5: Solve for x
    x = 55,785,275,400.96/266,437.68
  6. Step 6: Final answer
    x = 209,374.57

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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.