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Finding the Fourth Proportional to 339,055.20, 507,999.60 and 220,665.60

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Solution

The fourth proportional to 339,055.20, 507,999.60 and 220,665.60 is: 330,618.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,055.20 : 507,999.60 = 220,665.60 : x
  2. Step 2: Convert to fraction form
    339,055.20/507,999.60 = 220,665.60/x
  3. Step 3: Cross multiply
    339,055.20x = 507,999.60 × 220,665.60
  4. Step 4: Simplify right side
    339,055.20x = 112,098,036,533.76
  5. Step 5: Solve for x
    x = 112,098,036,533.76/339,055.20
  6. Step 6: Final answer
    x = 330,618.84

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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.