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Finding the Fourth Proportional to 260,300.80, 359,212.80 and 147,123.20

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Solution

The fourth proportional to 260,300.80, 359,212.80 and 147,123.20 is: 203,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,300.80 : 359,212.80 = 147,123.20 : x
  2. Step 2: Convert to fraction form
    260,300.80/359,212.80 = 147,123.20/x
  3. Step 3: Cross multiply
    260,300.80x = 359,212.80 × 147,123.20
  4. Step 4: Simplify right side
    260,300.80x = 52,848,536,616.96
  5. Step 5: Solve for x
    x = 52,848,536,616.96/260,300.80
  6. Step 6: Final answer
    x = 203,028.71

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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.