Home / 278,982.78-385,038.26-170,150.24

Finding the Fourth Proportional to 278,982.78, 385,038.26 and 170,150.24

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Solution

The fourth proportional to 278,982.78, 385,038.26 and 170,150.24 is: 234,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,982.78 : 385,038.26 = 170,150.24 : x
  2. Step 2: Convert to fraction form
    278,982.78/385,038.26 = 170,150.24/x
  3. Step 3: Cross multiply
    278,982.78x = 385,038.26 × 170,150.24
  4. Step 4: Simplify right side
    278,982.78x = 65,514,352,348.18
  5. Step 5: Solve for x
    x = 65,514,352,348.18/278,982.78
  6. Step 6: Final answer
    x = 234,832.96

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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.