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Finding the Fourth Proportional to 268,055.27, 369,945.79 and 153,344.49

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Solution

The fourth proportional to 268,055.27, 369,945.79 and 153,344.49 is: 211,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,055.27 : 369,945.79 = 153,344.49 : x
  2. Step 2: Convert to fraction form
    268,055.27/369,945.79 = 153,344.49/x
  3. Step 3: Cross multiply
    268,055.27x = 369,945.79 × 153,344.49
  4. Step 4: Simplify right side
    268,055.27x = 56,729,148,495.20
  5. Step 5: Solve for x
    x = 56,729,148,495.20/268,055.27
  6. Step 6: Final answer
    x = 211,632.28

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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.