Home / 255,949.92-384,258.24-172,085.76

Finding the Fourth Proportional to 255,949.92, 384,258.24 and 172,085.76

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Solution

The fourth proportional to 255,949.92, 384,258.24 and 172,085.76 is: 258,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,949.92 : 384,258.24 = 172,085.76 : x
  2. Step 2: Convert to fraction form
    255,949.92/384,258.24 = 172,085.76/x
  3. Step 3: Cross multiply
    255,949.92x = 384,258.24 × 172,085.76
  4. Step 4: Simplify right side
    255,949.92x = 66,125,371,266.66
  5. Step 5: Solve for x
    x = 66,125,371,266.66/255,949.92
  6. Step 6: Final answer
    x = 258,352.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.