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Finding the Fourth Proportional to 272,168.64, 407,379.48 and 145,492.20

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Solution

The fourth proportional to 272,168.64, 407,379.48 and 145,492.20 is: 217,771.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,168.64 : 407,379.48 = 145,492.20 : x
  2. Step 2: Convert to fraction form
    272,168.64/407,379.48 = 145,492.20/x
  3. Step 3: Cross multiply
    272,168.64x = 407,379.48 × 145,492.20
  4. Step 4: Simplify right side
    272,168.64x = 59,270,536,780.06
  5. Step 5: Solve for x
    x = 59,270,536,780.06/272,168.64
  6. Step 6: Final answer
    x = 217,771.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.