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Finding the Fourth Proportional to 540,778.11, 811,254.64 and 225,266.91

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Solution

The fourth proportional to 540,778.11, 811,254.64 and 225,266.91 is: 337,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,778.11 : 811,254.64 = 225,266.91 : x
  2. Step 2: Convert to fraction form
    540,778.11/811,254.64 = 225,266.91/x
  3. Step 3: Cross multiply
    540,778.11x = 811,254.64 × 225,266.91
  4. Step 4: Simplify right side
    540,778.11x = 182,748,825,975.96
  5. Step 5: Solve for x
    x = 182,748,825,975.96/540,778.11
  6. Step 6: Final answer
    x = 337,936.80

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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.