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Finding the Fourth Proportional to 218,262.60, 301,204.88 and 122,768.46

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Solution

The fourth proportional to 218,262.60, 301,204.88 and 122,768.46 is: 169,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,262.60 : 301,204.88 = 122,768.46 : x
  2. Step 2: Convert to fraction form
    218,262.60/301,204.88 = 122,768.46/x
  3. Step 3: Cross multiply
    218,262.60x = 301,204.88 × 122,768.46
  4. Step 4: Simplify right side
    218,262.60x = 36,978,459,108.62
  5. Step 5: Solve for x
    x = 36,978,459,108.62/218,262.60
  6. Step 6: Final answer
    x = 169,421.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.