Home / 255,837.96-383,886.54-172,557

Finding the Fourth Proportional to 255,837.96, 383,886.54 and 172,557

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Solution

The fourth proportional to 255,837.96, 383,886.54 and 172,557 is: 258,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,837.96 : 383,886.54 = 172,557 : x
  2. Step 2: Convert to fraction form
    255,837.96/383,886.54 = 172,557/x
  3. Step 3: Cross multiply
    255,837.96x = 383,886.54 × 172,557
  4. Step 4: Simplify right side
    255,837.96x = 66,242,309,682.78
  5. Step 5: Solve for x
    x = 66,242,309,682.78/255,837.96
  6. Step 6: Final answer
    x = 258,922.91

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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.