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Finding the Fourth Proportional to 260,458.56, 359,440.80 and 147,278.88

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Solution

The fourth proportional to 260,458.56, 359,440.80 and 147,278.88 is: 203,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,458.56 : 359,440.80 = 147,278.88 : x
  2. Step 2: Convert to fraction form
    260,458.56/359,440.80 = 147,278.88/x
  3. Step 3: Cross multiply
    260,458.56x = 359,440.80 × 147,278.88
  4. Step 4: Simplify right side
    260,458.56x = 52,938,038,450.30
  5. Step 5: Solve for x
    x = 52,938,038,450.30/260,458.56
  6. Step 6: Final answer
    x = 203,249.37

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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.