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Finding the Fourth Proportional to 268,054.27, 369,944.41 and 153,343.49

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Solution

The fourth proportional to 268,054.27, 369,944.41 and 153,343.49 is: 211,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,054.27 : 369,944.41 = 153,343.49 : x
  2. Step 2: Convert to fraction form
    268,054.27/369,944.41 = 153,343.49/x
  3. Step 3: Cross multiply
    268,054.27x = 369,944.41 × 153,343.49
  4. Step 4: Simplify right side
    268,054.27x = 56,728,565,085.67
  5. Step 5: Solve for x
    x = 56,728,565,085.67/268,054.27
  6. Step 6: Final answer
    x = 211,630.90

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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.