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Finding the Fourth Proportional to 339,014.20, 507,938.10 and 220,624.60

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Solution

The fourth proportional to 339,014.20, 507,938.10 and 220,624.60 is: 330,557.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,014.20 : 507,938.10 = 220,624.60 : x
  2. Step 2: Convert to fraction form
    339,014.20/507,938.10 = 220,624.60/x
  3. Step 3: Cross multiply
    339,014.20x = 507,938.10 × 220,624.60
  4. Step 4: Simplify right side
    339,014.20x = 112,063,640,137.26
  5. Step 5: Solve for x
    x = 112,063,640,137.26/339,014.20
  6. Step 6: Final answer
    x = 330,557.36

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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.