Home / 260,000.69-390,204.39-133,635.83

Finding the Fourth Proportional to 260,000.69, 390,204.39 and 133,635.83

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Solution

The fourth proportional to 260,000.69, 390,204.39 and 133,635.83 is: 200,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,000.69 : 390,204.39 = 133,635.83 : x
  2. Step 2: Convert to fraction form
    260,000.69/390,204.39 = 133,635.83/x
  3. Step 3: Cross multiply
    260,000.69x = 390,204.39 × 133,635.83
  4. Step 4: Simplify right side
    260,000.69x = 52,145,285,325.70
  5. Step 5: Solve for x
    x = 52,145,285,325.70/260,000.69
  6. Step 6: Final answer
    x = 200,558.26

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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.