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Finding the Fourth Proportional to 254,408.20, 351,111.29 and 145,522.60

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Solution

The fourth proportional to 254,408.20, 351,111.29 and 145,522.60 is: 200,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,408.20 : 351,111.29 = 145,522.60 : x
  2. Step 2: Convert to fraction form
    254,408.20/351,111.29 = 145,522.60/x
  3. Step 3: Cross multiply
    254,408.20x = 351,111.29 × 145,522.60
  4. Step 4: Simplify right side
    254,408.20x = 51,094,626,204.76
  5. Step 5: Solve for x
    x = 51,094,626,204.76/254,408.20
  6. Step 6: Final answer
    x = 200,837.18

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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.