Home / 278,767.20-384,699.21-151,442.91

Finding the Fourth Proportional to 278,767.20, 384,699.21 and 151,442.91

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Solution

The fourth proportional to 278,767.20, 384,699.21 and 151,442.91 is: 208,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,767.20 : 384,699.21 = 151,442.91 : x
  2. Step 2: Convert to fraction form
    278,767.20/384,699.21 = 151,442.91/x
  3. Step 3: Cross multiply
    278,767.20x = 384,699.21 × 151,442.91
  4. Step 4: Simplify right side
    278,767.20x = 58,259,967,837.10
  5. Step 5: Solve for x
    x = 58,259,967,837.10/278,767.20
  6. Step 6: Final answer
    x = 208,991.47

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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.