Home / 255,836.96-383,885.04-172,556

Finding the Fourth Proportional to 255,836.96, 383,885.04 and 172,556

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Solution

The fourth proportional to 255,836.96, 383,885.04 and 172,556 is: 258,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,836.96 : 383,885.04 = 172,556 : x
  2. Step 2: Convert to fraction form
    255,836.96/383,885.04 = 172,556/x
  3. Step 3: Cross multiply
    255,836.96x = 383,885.04 × 172,556
  4. Step 4: Simplify right side
    255,836.96x = 66,241,666,962.24
  5. Step 5: Solve for x
    x = 66,241,666,962.24/255,836.96
  6. Step 6: Final answer
    x = 258,921.41

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1.5x scale

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.