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Finding the Fourth Proportional to 540,103.47, 810,144.77 and 161,280.88

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Solution

The fourth proportional to 540,103.47, 810,144.77 and 161,280.88 is: 241,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,103.47 : 810,144.77 = 161,280.88 : x
  2. Step 2: Convert to fraction form
    540,103.47/810,144.77 = 161,280.88/x
  3. Step 3: Cross multiply
    540,103.47x = 810,144.77 × 161,280.88
  4. Step 4: Simplify right side
    540,103.47x = 130,660,861,433.00
  5. Step 5: Solve for x
    x = 130,660,861,433.00/540,103.47
  6. Step 6: Final answer
    x = 241,918.20

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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.