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Finding the Fourth Proportional to 229,062.40, 343,010.40 and 218,564.80

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Solution

The fourth proportional to 229,062.40, 343,010.40 and 218,564.80 is: 327,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,062.40 : 343,010.40 = 218,564.80 : x
  2. Step 2: Convert to fraction form
    229,062.40/343,010.40 = 218,564.80/x
  3. Step 3: Cross multiply
    229,062.40x = 343,010.40 × 218,564.80
  4. Step 4: Simplify right side
    229,062.40x = 74,969,999,473.92
  5. Step 5: Solve for x
    x = 74,969,999,473.92/229,062.40
  6. Step 6: Final answer
    x = 327,290.73

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1.5x scale

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.