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Finding the Fourth Proportional to 540,610.92, 811,030.86 and 161,561.16

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Solution

The fourth proportional to 540,610.92, 811,030.86 and 161,561.16 is: 242,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,610.92 : 811,030.86 = 161,561.16 : x
  2. Step 2: Convert to fraction form
    540,610.92/811,030.86 = 161,561.16/x
  3. Step 3: Cross multiply
    540,610.92x = 811,030.86 × 161,561.16
  4. Step 4: Simplify right side
    540,610.92x = 131,031,086,537.40
  5. Step 5: Solve for x
    x = 131,031,086,537.40/540,610.92
  6. Step 6: Final answer
    x = 242,375.95

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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.