Home / 280,729.75-387,476.06-235,335.83

Finding the Fourth Proportional to 280,729.75, 387,476.06 and 235,335.83

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Solution

The fourth proportional to 280,729.75, 387,476.06 and 235,335.83 is: 324,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,729.75 : 387,476.06 = 235,335.83 : x
  2. Step 2: Convert to fraction form
    280,729.75/387,476.06 = 235,335.83/x
  3. Step 3: Cross multiply
    280,729.75x = 387,476.06 × 235,335.83
  4. Step 4: Simplify right side
    280,729.75x = 91,186,999,250.72
  5. Step 5: Solve for x
    x = 91,186,999,250.72/280,729.75
  6. Step 6: Final answer
    x = 324,821.29

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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.