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Finding the Fourth Proportional to 440,937, 661,405.50 and 108,513

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Solution

The fourth proportional to 440,937, 661,405.50 and 108,513 is: 162,769.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,937 : 661,405.50 = 108,513 : x
  2. Step 2: Convert to fraction form
    440,937/661,405.50 = 108,513/x
  3. Step 3: Cross multiply
    440,937x = 661,405.50 × 108,513
  4. Step 4: Simplify right side
    440,937x = 71,771,095,021.50
  5. Step 5: Solve for x
    x = 71,771,095,021.50/440,937
  6. Step 6: Final answer
    x = 162,769.50

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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.