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Finding the Fourth Proportional to 279,743.40, 419,615.10 and 241,689.60

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Solution

The fourth proportional to 279,743.40, 419,615.10 and 241,689.60 is: 362,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,743.40 : 419,615.10 = 241,689.60 : x
  2. Step 2: Convert to fraction form
    279,743.40/419,615.10 = 241,689.60/x
  3. Step 3: Cross multiply
    279,743.40x = 419,615.10 × 241,689.60
  4. Step 4: Simplify right side
    279,743.40x = 101,416,605,672.96
  5. Step 5: Solve for x
    x = 101,416,605,672.96/279,743.40
  6. Step 6: Final answer
    x = 362,534.40

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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.