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Finding the Fourth Proportional to 310,800.98, 428,943.33 and 174,840.66

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Solution

The fourth proportional to 310,800.98, 428,943.33 and 174,840.66 is: 241,301.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,800.98 : 428,943.33 = 174,840.66 : x
  2. Step 2: Convert to fraction form
    310,800.98/428,943.33 = 174,840.66/x
  3. Step 3: Cross multiply
    310,800.98x = 428,943.33 × 174,840.66
  4. Step 4: Simplify right side
    310,800.98x = 74,996,734,919.80
  5. Step 5: Solve for x
    x = 74,996,734,919.80/310,800.98
  6. Step 6: Final answer
    x = 241,301.47

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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.