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Finding the Fourth Proportional to 440,908.52, 661,242.65 and 120,984.54

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Solution

The fourth proportional to 440,908.52, 661,242.65 and 120,984.54 is: 181,443.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,908.52 : 661,242.65 = 120,984.54 : x
  2. Step 2: Convert to fraction form
    440,908.52/661,242.65 = 120,984.54/x
  3. Step 3: Cross multiply
    440,908.52x = 661,242.65 × 120,984.54
  4. Step 4: Simplify right side
    440,908.52x = 80,000,133,927.50
  5. Step 5: Solve for x
    x = 80,000,133,927.50/440,908.52
  6. Step 6: Final answer
    x = 181,443.84

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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.