Home / 260,500.10-390,765.36-100,576.94

Finding the Fourth Proportional to 260,500.10, 390,765.36 and 100,576.94

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Solution

The fourth proportional to 260,500.10, 390,765.36 and 100,576.94 is: 150,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,500.10 : 390,765.36 = 100,576.94 : x
  2. Step 2: Convert to fraction form
    260,500.10/390,765.36 = 100,576.94/x
  3. Step 3: Cross multiply
    260,500.10x = 390,765.36 × 100,576.94
  4. Step 4: Simplify right side
    260,500.10x = 39,301,984,166.80
  5. Step 5: Solve for x
    x = 39,301,984,166.80/260,500.10
  6. Step 6: Final answer
    x = 150,871.28

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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.