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Finding the Fourth Proportional to 279,032.40, 418,548.60 and 254,100.60

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Solution

The fourth proportional to 279,032.40, 418,548.60 and 254,100.60 is: 381,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,032.40 : 418,548.60 = 254,100.60 : x
  2. Step 2: Convert to fraction form
    279,032.40/418,548.60 = 254,100.60/x
  3. Step 3: Cross multiply
    279,032.40x = 418,548.60 × 254,100.60
  4. Step 4: Simplify right side
    279,032.40x = 106,353,450,389.16
  5. Step 5: Solve for x
    x = 106,353,450,389.16/279,032.40
  6. Step 6: Final answer
    x = 381,150.90

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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.