Home / 257,822.73-355,792.66-143,102.36

Finding the Fourth Proportional to 257,822.73, 355,792.66 and 143,102.36

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Solution

The fourth proportional to 257,822.73, 355,792.66 and 143,102.36 is: 197,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,822.73 : 355,792.66 = 143,102.36 : x
  2. Step 2: Convert to fraction form
    257,822.73/355,792.66 = 143,102.36/x
  3. Step 3: Cross multiply
    257,822.73x = 355,792.66 × 143,102.36
  4. Step 4: Simplify right side
    257,822.73x = 50,914,769,848.40
  5. Step 5: Solve for x
    x = 50,914,769,848.40/257,822.73
  6. Step 6: Final answer
    x = 197,479.76

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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.