Home / 254,965.10-382,275.11-142,722.80

Finding the Fourth Proportional to 254,965.10, 382,275.11 and 142,722.80

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Solution

The fourth proportional to 254,965.10, 382,275.11 and 142,722.80 is: 213,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,965.10 : 382,275.11 = 142,722.80 : x
  2. Step 2: Convert to fraction form
    254,965.10/382,275.11 = 142,722.80/x
  3. Step 3: Cross multiply
    254,965.10x = 382,275.11 × 142,722.80
  4. Step 4: Simplify right side
    254,965.10x = 54,559,372,514.94
  5. Step 5: Solve for x
    x = 54,559,372,514.94/254,965.10
  6. Step 6: Final answer
    x = 213,987.61

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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.