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Finding the Fourth Proportional to 389,754.81, 537,698.93 and 262,208.97

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Solution

The fourth proportional to 389,754.81, 537,698.93 and 262,208.97 is: 361,738.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,754.81 : 537,698.93 = 262,208.97 : x
  2. Step 2: Convert to fraction form
    389,754.81/537,698.93 = 262,208.97/x
  3. Step 3: Cross multiply
    389,754.81x = 537,698.93 × 262,208.97
  4. Step 4: Simplify right side
    389,754.81x = 140,989,481,294.36
  5. Step 5: Solve for x
    x = 140,989,481,294.36/389,754.81
  6. Step 6: Final answer
    x = 361,738.91

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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.