Home / 260,362.20-389,636.10-155,256.60

Finding the Fourth Proportional to 260,362.20, 389,636.10 and 155,256.60

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Solution

The fourth proportional to 260,362.20, 389,636.10 and 155,256.60 is: 232,343.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,362.20 : 389,636.10 = 155,256.60 : x
  2. Step 2: Convert to fraction form
    260,362.20/389,636.10 = 155,256.60/x
  3. Step 3: Cross multiply
    260,362.20x = 389,636.10 × 155,256.60
  4. Step 4: Simplify right side
    260,362.20x = 60,493,576,123.26
  5. Step 5: Solve for x
    x = 60,493,576,123.26/260,362.20
  6. Step 6: Final answer
    x = 232,343.93

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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.