Home / 455,207.60-682,811.40-159,719.60

Finding the Fourth Proportional to 455,207.60, 682,811.40 and 159,719.60

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Solution

The fourth proportional to 455,207.60, 682,811.40 and 159,719.60 is: 239,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,207.60 : 682,811.40 = 159,719.60 : x
  2. Step 2: Convert to fraction form
    455,207.60/682,811.40 = 159,719.60/x
  3. Step 3: Cross multiply
    455,207.60x = 682,811.40 × 159,719.60
  4. Step 4: Simplify right side
    455,207.60x = 109,058,363,683.44
  5. Step 5: Solve for x
    x = 109,058,363,683.44/455,207.60
  6. Step 6: Final answer
    x = 239,579.40

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Similar ratio
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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.