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Finding the Fourth Proportional to 656,090.40, 984,135.60 and 235,311.60

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Solution

The fourth proportional to 656,090.40, 984,135.60 and 235,311.60 is: 352,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,090.40 : 984,135.60 = 235,311.60 : x
  2. Step 2: Convert to fraction form
    656,090.40/984,135.60 = 235,311.60/x
  3. Step 3: Cross multiply
    656,090.40x = 984,135.60 × 235,311.60
  4. Step 4: Simplify right side
    656,090.40x = 231,578,522,652.96
  5. Step 5: Solve for x
    x = 231,578,522,652.96/656,090.40
  6. Step 6: Final answer
    x = 352,967.40

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Similar ratio
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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.