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Finding the Fourth Proportional to 360,208.02, 539,829.03 and 280,342.41

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Solution

The fourth proportional to 360,208.02, 539,829.03 and 280,342.41 is: 420,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,208.02 : 539,829.03 = 280,342.41 : x
  2. Step 2: Convert to fraction form
    360,208.02/539,829.03 = 280,342.41/x
  3. Step 3: Cross multiply
    360,208.02x = 539,829.03 × 280,342.41
  4. Step 4: Simplify right side
    360,208.02x = 151,336,971,258.16
  5. Step 5: Solve for x
    x = 151,336,971,258.16/360,208.02
  6. Step 6: Final answer
    x = 420,137.71

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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.