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Finding the Fourth Proportional to 310,800.34, 428,864.11 and 174,829.69

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Solution

The fourth proportional to 310,800.34, 428,864.11 and 174,829.69 is: 241,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,800.34 : 428,864.11 = 174,829.69 : x
  2. Step 2: Convert to fraction form
    310,800.34/428,864.11 = 174,829.69/x
  3. Step 3: Cross multiply
    310,800.34x = 428,864.11 × 174,829.69
  4. Step 4: Simplify right side
    310,800.34x = 74,978,179,403.43
  5. Step 5: Solve for x
    x = 74,978,179,403.43/310,800.34
  6. Step 6: Final answer
    x = 241,242.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.