Home / 278,429.86-384,177.62-169,461.20

Finding the Fourth Proportional to 278,429.86, 384,177.62 and 169,461.20

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Solution

The fourth proportional to 278,429.86, 384,177.62 and 169,461.20 is: 233,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,429.86 : 384,177.62 = 169,461.20 : x
  2. Step 2: Convert to fraction form
    278,429.86/384,177.62 = 169,461.20/x
  3. Step 3: Cross multiply
    278,429.86x = 384,177.62 × 169,461.20
  4. Step 4: Simplify right side
    278,429.86x = 65,103,201,882.44
  5. Step 5: Solve for x
    x = 65,103,201,882.44/278,429.86
  6. Step 6: Final answer
    x = 233,822.63

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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.