Home / 268,053.39-369,943.20-153,342.61

Finding the Fourth Proportional to 268,053.39, 369,943.20 and 153,342.61

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Solution

The fourth proportional to 268,053.39, 369,943.20 and 153,342.61 is: 211,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,053.39 : 369,943.20 = 153,342.61 : x
  2. Step 2: Convert to fraction form
    268,053.39/369,943.20 = 153,342.61/x
  3. Step 3: Cross multiply
    268,053.39x = 369,943.20 × 153,342.61
  4. Step 4: Simplify right side
    268,053.39x = 56,728,054,914.89
  5. Step 5: Solve for x
    x = 56,728,054,914.89/268,053.39
  6. Step 6: Final answer
    x = 211,629.69

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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.