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Finding the Fourth Proportional to 540,961.92, 811,516.68 and 225,345

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Solution

The fourth proportional to 540,961.92, 811,516.68 and 225,345 is: 338,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,961.92 : 811,516.68 = 225,345 : x
  2. Step 2: Convert to fraction form
    540,961.92/811,516.68 = 225,345/x
  3. Step 3: Cross multiply
    540,961.92x = 811,516.68 × 225,345
  4. Step 4: Simplify right side
    540,961.92x = 182,871,226,254.60
  5. Step 5: Solve for x
    x = 182,871,226,254.60/540,961.92
  6. Step 6: Final answer
    x = 338,048.24

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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.