Home / 387,788.20-581,682.30-166,604.20

Finding the Fourth Proportional to 387,788.20, 581,682.30 and 166,604.20

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Solution

The fourth proportional to 387,788.20, 581,682.30 and 166,604.20 is: 249,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,788.20 : 581,682.30 = 166,604.20 : x
  2. Step 2: Convert to fraction form
    387,788.20/581,682.30 = 166,604.20/x
  3. Step 3: Cross multiply
    387,788.20x = 581,682.30 × 166,604.20
  4. Step 4: Simplify right side
    387,788.20x = 96,910,714,245.66
  5. Step 5: Solve for x
    x = 96,910,714,245.66/387,788.20
  6. Step 6: Final answer
    x = 249,906.30

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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.