Home / 251,966.08-347,714.13-138,788.56

Finding the Fourth Proportional to 251,966.08, 347,714.13 and 138,788.56

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Solution

The fourth proportional to 251,966.08, 347,714.13 and 138,788.56 is: 191,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,966.08 : 347,714.13 = 138,788.56 : x
  2. Step 2: Convert to fraction form
    251,966.08/347,714.13 = 138,788.56/x
  3. Step 3: Cross multiply
    251,966.08x = 347,714.13 × 138,788.56
  4. Step 4: Simplify right side
    251,966.08x = 48,258,743,394.35
  5. Step 5: Solve for x
    x = 48,258,743,394.35/251,966.08
  6. Step 6: Final answer
    x = 191,528.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.