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Finding the Fourth Proportional to 236,420.40, 354,630.60 and 217,066.80

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Solution

The fourth proportional to 236,420.40, 354,630.60 and 217,066.80 is: 325,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,420.40 : 354,630.60 = 217,066.80 : x
  2. Step 2: Convert to fraction form
    236,420.40/354,630.60 = 217,066.80/x
  3. Step 3: Cross multiply
    236,420.40x = 354,630.60 × 217,066.80
  4. Step 4: Simplify right side
    236,420.40x = 76,978,529,524.08
  5. Step 5: Solve for x
    x = 76,978,529,524.08/236,420.40
  6. Step 6: Final answer
    x = 325,600.20

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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.