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Finding the Fourth Proportional to 260,751.44, 391,123.85 and 83,256.20

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Solution

The fourth proportional to 260,751.44, 391,123.85 and 83,256.20 is: 124,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,751.44 : 391,123.85 = 83,256.20 : x
  2. Step 2: Convert to fraction form
    260,751.44/391,123.85 = 83,256.20/x
  3. Step 3: Cross multiply
    260,751.44x = 391,123.85 × 83,256.20
  4. Step 4: Simplify right side
    260,751.44x = 32,563,483,732.89
  5. Step 5: Solve for x
    x = 32,563,483,732.89/260,751.44
  6. Step 6: Final answer
    x = 124,883.24

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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.