Home / 278,456.66-384,270.57-151,132.26

Finding the Fourth Proportional to 278,456.66, 384,270.57 and 151,132.26

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Solution

The fourth proportional to 278,456.66, 384,270.57 and 151,132.26 is: 208,562.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,456.66 : 384,270.57 = 151,132.26 : x
  2. Step 2: Convert to fraction form
    278,456.66/384,270.57 = 151,132.26/x
  3. Step 3: Cross multiply
    278,456.66x = 384,270.57 × 151,132.26
  4. Step 4: Simplify right side
    278,456.66x = 58,075,678,939.93
  5. Step 5: Solve for x
    x = 58,075,678,939.93/278,456.66
  6. Step 6: Final answer
    x = 208,562.73

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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.