Home / 254,823.56-380,085.30-221,279.84

Finding the Fourth Proportional to 254,823.56, 380,085.30 and 221,279.84

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Solution

The fourth proportional to 254,823.56, 380,085.30 and 221,279.84 is: 330,052.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,823.56 : 380,085.30 = 221,279.84 : x
  2. Step 2: Convert to fraction form
    254,823.56/380,085.30 = 221,279.84/x
  3. Step 3: Cross multiply
    254,823.56x = 380,085.30 × 221,279.84
  4. Step 4: Simplify right side
    254,823.56x = 84,105,214,370.35
  5. Step 5: Solve for x
    x = 84,105,214,370.35/254,823.56
  6. Step 6: Final answer
    x = 330,052.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.