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Finding the Fourth Proportional to 656,072.40, 984,108.60 and 235,390.80

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Solution

The fourth proportional to 656,072.40, 984,108.60 and 235,390.80 is: 353,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,072.40 : 984,108.60 = 235,390.80 : x
  2. Step 2: Convert to fraction form
    656,072.40/984,108.60 = 235,390.80/x
  3. Step 3: Cross multiply
    656,072.40x = 984,108.60 × 235,390.80
  4. Step 4: Simplify right side
    656,072.40x = 231,650,110,640.88
  5. Step 5: Solve for x
    x = 231,650,110,640.88/656,072.40
  6. Step 6: Final answer
    x = 353,086.20

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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.