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Finding the Fourth Proportional to 369,053.88, 509,331.98 and 225,908.52

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Solution

The fourth proportional to 369,053.88, 509,331.98 and 225,908.52 is: 311,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,053.88 : 509,331.98 = 225,908.52 : x
  2. Step 2: Convert to fraction form
    369,053.88/509,331.98 = 225,908.52/x
  3. Step 3: Cross multiply
    369,053.88x = 509,331.98 × 225,908.52
  4. Step 4: Simplify right side
    369,053.88x = 115,062,432,660.93
  5. Step 5: Solve for x
    x = 115,062,432,660.93/369,053.88
  6. Step 6: Final answer
    x = 311,776.79

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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.